65960172 has 72 divisors (see below), whose sum is σ = 178046960. Its totient is φ = 20528640.

The previous prime is 65960161. The next prime is 65960173. The reversal of 65960172 is 27106956.

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 (65960173) 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 23 ways as a sum of consecutive naturals, for example, 49272 + ... + 50592.

Almost surely, 2^65960172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65960172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89023480).

65960172 is an abundant number, since it is smaller than the sum of its proper divisors (112086788).

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

65960172 is a wasteful number, since it uses less digits than its factorization.

65960172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 65960172 is about 8121.5867907694. The cubic root of 65960172 is about 404.0426955498.

The spelling of 65960172 in words is "sixty-five million, nine hundred sixty thousand, one hundred seventy-two".