130644685765 has 16 divisors (see below), whose sum is σ = 172274143680. Its totient is φ = 94320776320.

The previous prime is 130644685753. The next prime is 130644685783. The reversal of 130644685765 is 567586446031.

It is a happy number.

It is not a de Polignac number, because 130644685765 - 2⁷ = 130644685637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 8661655 + ... + 8676724.

It is an arithmetic number, because the mean of its divisors is an integer number (10767133980).

Almost surely, 2^130644685765 is an apocalyptic number.

It is an amenable number.

130644685765 is a deficient number, since it is larger than the sum of its proper divisors (41629457915).

130644685765 is a wasteful number, since it uses less digits than its factorization.

130644685765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17338532.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 130644685765 in words is "one hundred thirty billion, six hundred forty-four million, six hundred eighty-five thousand, seven hundred sixty-five".