15125677664 has 24 divisors (see below), whose sum is σ = 29897333928. Its totient is φ = 7532704000.

The previous prime is 15125677649. The next prime is 15125677709. The reversal of 15125677664 is 46677652151.

It is a super-2 number, since 2×15125677664² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933557 + ... + 949620.

It is an arithmetic number, because the mean of its divisors is an integer number (1245722247).

Almost surely, 2^15125677664 is an apocalyptic number.

It is an amenable number.

15125677664 is a deficient number, since it is larger than the sum of its proper divisors (14771656264).

15125677664 is a wasteful number, since it uses less digits than its factorization.

15125677664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883438 (or 1883430 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

The spelling of 15125677664 in words is "fifteen billion, one hundred twenty-five million, six hundred seventy-seven thousand, six hundred sixty-four".