655051165065 has 48 divisors (see below), whose sum is σ = 1238775348096. Its totient is φ = 317566425600.

The previous prime is 655051165039. The next prime is 655051165117. The reversal of 655051165065 is 560561150556.

It is not a de Polignac number, because 655051165065 - 2⁸ = 655051164809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 655051165065.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4887345 + ... + 5019585.

It is an arithmetic number, because the mean of its divisors is an integer number (25807819752).

Almost surely, 2^655051165065 is an apocalyptic number.

It is an amenable number.

655051165065 is a deficient number, since it is larger than the sum of its proper divisors (583724183031).

655051165065 is a wasteful number, since it uses less digits than its factorization.

655051165065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142270 (or 142267 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 655051165065 in words is "six hundred fifty-five billion, fifty-one million, one hundred sixty-five thousand, sixty-five".