66277160 has 32 divisors (see below), whose sum is σ = 150927840. Its totient is φ = 26190144.

The previous prime is 66277153. The next prime is 66277193. The reversal of 66277160 is 6177266.

It is a self number, because there is not a number n which added to its sum of digits gives 66277160.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6662 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (4716495).

Almost surely, 2^66277160 is an apocalyptic number.

It is an amenable number.

66277160 is an abundant number, since it is smaller than the sum of its proper divisors (84650680).

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

66277160 is a wasteful number, since it uses less digits than its factorization.

66277160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20057 (or 20053 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 66277160 is about 8141.0785526243. The cubic root of 66277160 is about 404.6889040117.

The spelling of 66277160 in words is "sixty-six million, two hundred seventy-seven thousand, one hundred sixty".