65521000118 has 16 divisors (see below), whose sum is σ = 112437414144. Its totient is φ = 28051503720.

The previous prime is 65521000063. The next prime is 65521000141. The reversal of 65521000118 is 81100012556.

It is a congruent number.

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, 2396330 + ... + 2423517.

It is an arithmetic number, because the mean of its divisors is an integer number (7027338384).

Almost surely, 2^65521000118 is an apocalyptic number.

65521000118 is a deficient number, since it is larger than the sum of its proper divisors (46916414026).

65521000118 is a wasteful number, since it uses less digits than its factorization.

65521000118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820827.

The product of its (nonzero) digits is 2400, while the sum is 29.

The spelling of 65521000118 in words is "sixty-five billion, five hundred twenty-one million, one hundred eighteen", and thus it is an aban number.