15155546556 has 24 divisors (see below), whose sum is σ = 35727511120. Its totient is φ = 4999767552.

The previous prime is 15155546543. The next prime is 15155546573. The reversal of 15155546556 is 65564555151.

It is a super-2 number, since 2×15155546556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6508951 + ... + 6511278.

Almost surely, 2^15155546556 is an apocalyptic number.

It is an amenable number.

15155546556 is an abundant number, since it is smaller than the sum of its proper divisors (20571964564).

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

15155546556 is a wasteful number, since it uses less digits than its factorization.

15155546556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13020333 (or 13020331 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 48.

The spelling of 15155546556 in words is "fifteen billion, one hundred fifty-five million, five hundred forty-six thousand, five hundred fifty-six".