15677925965 has 32 divisors (see below), whose sum is σ = 21457287936. Its totient is φ = 10908817920.

The previous prime is 15677925959. The next prime is 15677925983. The reversal of 15677925965 is 56952977651.

It is not a de Polignac number, because 15677925965 - 2¹⁴ = 15677909581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15677925898 and 15677925907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21905 + ... + 178425.

It is an arithmetic number, because the mean of its divisors is an integer number (670540248).

Almost surely, 2^15677925965 is an apocalyptic number.

It is an amenable number.

15677925965 is a deficient number, since it is larger than the sum of its proper divisors (5779361971).

15677925965 is a wasteful number, since it uses less digits than its factorization.

15677925965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156629.

The product of its digits is 35721000, while the sum is 62.

The spelling of 15677925965 in words is "fifteen billion, six hundred seventy-seven million, nine hundred twenty-five thousand, nine hundred sixty-five".