15500244988 has 12 divisors (see below), whose sum is σ = 27126459360. Its totient is φ = 7749828032.

The previous prime is 15500244953. The next prime is 15500245039. The reversal of 15500244988 is 88944200551.

It is a congruent number.

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, 80820 + ... + 193732.

It is an arithmetic number, because the mean of its divisors is an integer number (2260538280).

Almost surely, 2^15500244988 is an apocalyptic number.

It is an amenable number.

15500244988 is a deficient number, since it is larger than the sum of its proper divisors (11626214372).

15500244988 is a wasteful number, since it uses less digits than its factorization.

15500244988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147236 (or 147234 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 15500244988 in words is "fifteen billion, five hundred million, two hundred forty-four thousand, nine hundred eighty-eight".