15515346056 has 16 divisors (see below), whose sum is σ = 33247170240. Its totient is φ = 6649434000.

The previous prime is 15515346047. The next prime is 15515346073. The reversal of 15515346056 is 65064351551.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138529820 + ... + 138529931.

It is an arithmetic number, because the mean of its divisors is an integer number (2077948140).

Almost surely, 2^15515346056 is an apocalyptic number.

It is an amenable number.

15515346056 is an abundant number, since it is smaller than the sum of its proper divisors (17731824184).

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

15515346056 is a wasteful number, since it uses less digits than its factorization.

15515346056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277059764 (or 277059760 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 15515346056 in words is "fifteen billion, five hundred fifteen million, three hundred forty-six thousand, fifty-six".