130657156565 has 16 divisors (see below), whose sum is σ = 169388729328. Its totient is φ = 96177010176.

The previous prime is 130657156541. The next prime is 130657156573. The reversal of 130657156565 is 565651756031.

It can be written as a sum of positive squares in 8 ways, for example, as 24173719441 + 106483437124 = 155479^2 + 326318^2 .

It is not a de Polignac number, because 130657156565 - 2³⁶ = 61937679829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3190694 + ... + 3231383.

It is an arithmetic number, because the mean of its divisors is an integer number (10586795583).

Almost surely, 2^130657156565 is an apocalyptic number.

It is an amenable number.

130657156565 is a deficient number, since it is larger than the sum of its proper divisors (38731572763).

130657156565 is a wasteful number, since it uses less digits than its factorization.

130657156565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422408.

The product of its (nonzero) digits is 2835000, while the sum is 50.

The spelling of 130657156565 in words is "one hundred thirty billion, six hundred fifty-seven million, one hundred fifty-six thousand, five hundred sixty-five".