15697948224 has 112 divisors (see below), whose sum is σ = 49531511808. Its totient is φ = 4290114048.

The previous prime is 15697948183. The next prime is 15697948241. The reversal of 15697948224 is 42284979651.

It is a tau number, because it is divible by the number of its divisors (112).

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, 223002 + ... + 284825.

Almost surely, 2^15697948224 is an apocalyptic number.

15697948224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15697948224 is an abundant number, since it is smaller than the sum of its proper divisors (33833563584).

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

15697948224 is a wasteful number, since it uses less digits than its factorization.

15697948224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507872 (or 507862 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The spelling of 15697948224 in words is "fifteen billion, six hundred ninety-seven million, nine hundred forty-eight thousand, two hundred twenty-four".