166236630 has 64 divisors (see below), whose sum is σ = 463726080. Its totient is φ = 37350144.

The previous prime is 166236611. The next prime is 166236641. The reversal of 166236630 is 36632661.

It is a happy number.

166236630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 166236591 and 166236600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5682 + ... + 19098.

It is an arithmetic number, because the mean of its divisors is an integer number (7245720).

Almost surely, 2^166236630 is an apocalyptic number.

166236630 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 166236630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231863040).

166236630 is an abundant number, since it is smaller than the sum of its proper divisors (297489450).

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

166236630 is a wasteful number, since it uses less digits than its factorization.

166236630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13493.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 166236630 is about 12893.2784814414. The cubic root of 166236630 is about 549.8474838817.

The spelling of 166236630 in words is "one hundred sixty-six million, two hundred thirty-six thousand, six hundred thirty".