65172160 has 28 divisors (see below), whose sum is σ = 155191968. Its totient is φ = 26068736.

The previous prime is 65172143. The next prime is 65172161. The reversal of 65172160 is 6127156.

It is not an unprimeable number, because it can be changed into a prime (65172161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101512 + ... + 102151.

Almost surely, 2^65172160 is an apocalyptic number.

It is an amenable number.

65172160 is an abundant number, since it is smaller than the sum of its proper divisors (90019808).

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

65172160 is a wasteful number, since it uses less digits than its factorization.

65172160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203680 (or 203670 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 65172160 is about 8072.9275978421. The cubic root of 65172160 is about 402.4272414554.

It can be divided in two parts, 65 and 172160, that added together give a square (172225 = 415²).

The spelling of 65172160 in words is "sixty-five million, one hundred seventy-two thousand, one hundred sixty".