15620560255556 has 24 divisors (see below), whose sum is σ = 27489274525440. Its totient is φ = 7766488936800.

The previous prime is 15620560255513. The next prime is 15620560255609. The reversal of 15620560255556 is 65555206502651.

It is a junction number, because it is equal to n+sod(n) for n = 15620560255498 and 15620560255507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7957325 + ... + 9724203.

It is an arithmetic number, because the mean of its divisors is an integer number (1145386438560).

Almost surely, 2^{15620560255556} is an apocalyptic number.

It is an amenable number.

15620560255556 is a deficient number, since it is larger than the sum of its proper divisors (11868714269884).

15620560255556 is a wasteful number, since it uses less digits than its factorization.

15620560255556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779275 (or 1779273 counting only the distinct ones).

The product of its (nonzero) digits is 13500000, while the sum is 53.

The spelling of 15620560255556 in words is "fifteen trillion, six hundred twenty billion, five hundred sixty million, two hundred fifty-five thousand, five hundred fifty-six".