66955160 has 32 divisors (see below), whose sum is σ = 151126560. Its totient is φ = 26697216.

The previous prime is 66955159. The next prime is 66955193. The reversal of 66955160 is 6155966.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10997 + ... + 15963.

It is an arithmetic number, because the mean of its divisors is an integer number (4722705).

Almost surely, 2^66955160 is an apocalyptic number.

It is an amenable number.

66955160 is an abundant number, since it is smaller than the sum of its proper divisors (84171400).

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

66955160 is a wasteful number, since it uses less digits than its factorization.

66955160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315 (or 5311 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 66955160 is about 8182.6132744986. The cubic root of 66955160 is about 406.0641829500.

The spelling of 66955160 in words is "sixty-six million, nine hundred fifty-five thousand, one hundred sixty".