65155061111665 has 64 divisors (see below), whose sum is σ = 90998014238208. Its totient is φ = 43864104960000.

The previous prime is 65155061111617. The next prime is 65155061111677. The reversal of 65155061111665 is 56611116055156.

It is not a de Polignac number, because 65155061111665 - 2⁷ = 65155061111537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1334655337 + ... + 1334704153.

It is an arithmetic number, because the mean of its divisors is an integer number (1421843972472).

Almost surely, 2^{65155061111665} is an apocalyptic number.

It is an amenable number.

65155061111665 is a deficient number, since it is larger than the sum of its proper divisors (25842953126543).

65155061111665 is a wasteful number, since it uses less digits than its factorization.

65155061111665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52058.

The product of its (nonzero) digits is 810000, while the sum is 49.

The spelling of 65155061111665 in words is "sixty-five trillion, one hundred fifty-five billion, sixty-one million, one hundred eleven thousand, six hundred sixty-five".