66046860 has 96 divisors (see below), whose sum is σ = 224179200. Its totient is φ = 16009920.

The previous prime is 66046847. The next prime is 66046867. The reversal of 66046860 is 6864066.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (66046867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381 + ... + 11499.

It is an arithmetic number, because the mean of its divisors is an integer number (2335200).

Almost surely, 2^66046860 is an apocalyptic number.

66046860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66046860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112089600).

66046860 is an abundant number, since it is smaller than the sum of its proper divisors (158132340).

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

66046860 is a wasteful number, since it uses less digits than its factorization.

66046860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148 (or 11140 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 66046860 is about 8126.9219265353. The cubic root of 66046860 is about 404.2196221162.

The spelling of 66046860 in words is "sixty-six million, forty-six thousand, eight hundred sixty".