15677975552 has 176 divisors, whose sum is σ = 35336787840. Its totient is φ = 6908608512.

The previous prime is 15677975503. The next prime is 15677975639. The reversal of 15677975552 is 25557977651.

Its product of digits (23152500) is a multiple of the sum of its prime divisors (588).

It is a junction number, because it is equal to n+sod(n) for n = 15677975491 and 15677975500.

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, 35390243 + ... + 35390685.

Almost surely, 2^15677975552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15677975552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17668393920).

15677975552 is an abundant number, since it is smaller than the sum of its proper divisors (19658812288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15677975552 is a wasteful number, since it uses less digits than its factorization.

15677975552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 588 counting only the distinct ones).

The product of its digits is 23152500, while the sum is 59.

The spelling of 15677975552 in words is "fifteen billion, six hundred seventy-seven million, nine hundred seventy-five thousand, five hundred fifty-two".