1166231430 has 192 divisors, whose sum is σ = 3763888128. Its totient is φ = 243959040.

The previous prime is 1166231411. The next prime is 1166231431. The reversal of 1166231430 is 341326611.

1166231430 is a `hidden beast` number, since 1 + 1 + 6 + 623 + 1 + 4 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1166231394 and 1166231403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166231431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1072347 + ... + 1073433.

It is an arithmetic number, because the mean of its divisors is an integer number (19603584).

Almost surely, 2^1166231430 is an apocalyptic number.

1166231430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166231430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1881944064).

1166231430 is an abundant number, since it is smaller than the sum of its proper divisors (2597656698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166231430 is a wasteful number, since it uses less digits than its factorization.

1166231430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1166231430 is about 34150.1307464554. The cubic root of 1166231430 is about 1052.5956732652.

The spelling of 1166231430 in words is "one billion, one hundred sixty-six million, two hundred thirty-one thousand, four hundred thirty".