15056601556 has 12 divisors (see below), whose sum is σ = 26359240320. Its totient is φ = 7525390040.

The previous prime is 15056601551. The next prime is 15056601577. The reversal of 15056601556 is 65510665051.

It is a super-2 number, since 2×15056601556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15056601551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716026 + ... + 736753.

It is an arithmetic number, because the mean of its divisors is an integer number (2196603360).

Almost surely, 2^15056601556 is an apocalyptic number.

It is an amenable number.

15056601556 is a deficient number, since it is larger than the sum of its proper divisors (11302638764).

15056601556 is a wasteful number, since it uses less digits than its factorization.

15056601556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455374 (or 1455372 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 15056601556 in words is "fifteen billion, fifty-six million, six hundred one thousand, five hundred fifty-six".