66677160 has 64 divisors (see below), whose sum is σ = 218220480. Its totient is φ = 16163840.

The previous prime is 66677123. The next prime is 66677167. The reversal of 66677160 is 6177666.

It is not an unprimeable number, because it can be changed into a prime (66677167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23937 + ... + 26576.

It is an arithmetic number, because the mean of its divisors is an integer number (3409695).

Almost surely, 2^66677160 is an apocalyptic number.

66677160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66677160 is an abundant number, since it is smaller than the sum of its proper divisors (151543320).

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

66677160 is a wasteful number, since it uses less digits than its factorization.

66677160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50538 (or 50534 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 66677160 is about 8165.6083668028. The cubic root of 66677160 is about 405.5014061131.

The spelling of 66677160 in words is "sixty-six million, six hundred seventy-seven thousand, one hundred sixty".