65500172 has 12 divisors (see below), whose sum is σ = 115738896. Its totient is φ = 32431920.

The previous prime is 65500151. The next prime is 65500177. The reversal of 65500172 is 27100556.

It is not an unprimeable number, because it can be changed into a prime (65500177) 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, 79079 + ... + 79902.

It is an arithmetic number, because the mean of its divisors is an integer number (9644908).

Almost surely, 2^65500172 is an apocalyptic number.

It is an amenable number.

65500172 is a deficient number, since it is larger than the sum of its proper divisors (50238724).

65500172 is a wasteful number, since it uses less digits than its factorization.

65500172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159088 (or 159086 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 65500172 is about 8093.2176543078. The cubic root of 65500172 is about 403.1012517869.

The spelling of 65500172 in words is "sixty-five million, five hundred thousand, one hundred seventy-two".