15557115045 has 16 divisors (see below), whose sum is σ = 25232363712. Its totient is φ = 8183468160.

The previous prime is 15557115037. The next prime is 15557115109. The reversal of 15557115045 is 54051175551.

It is a happy number.

It is not a de Polignac number, because 15557115045 - 2³ = 15557115037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15557114994 and 15557115012.

It is a congruent number.

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, 7102611 + ... + 7104800.

It is an arithmetic number, because the mean of its divisors is an integer number (1577022732).

Almost surely, 2^15557115045 is an apocalyptic number.

15557115045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15557115045 is a deficient number, since it is larger than the sum of its proper divisors (9675248667).

15557115045 is a wasteful number, since it uses less digits than its factorization.

15557115045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14207492.

The product of its (nonzero) digits is 87500, while the sum is 39.

The spelling of 15557115045 in words is "fifteen billion, five hundred fifty-seven million, one hundred fifteen thousand, forty-five".