15985532038472 has 32 divisors (see below), whose sum is σ = 30054951763200. Its totient is φ = 7970887968000.

The previous prime is 15985532038363. The next prime is 15985532038477. The reversal of 15985532038472 is 27483023558951.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15985532038477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12582029 + ... + 13794147.

It is an arithmetic number, because the mean of its divisors is an integer number (939217242600).

Almost surely, 2^{15985532038472} is an apocalyptic number.

It is an amenable number.

15985532038472 is a deficient number, since it is larger than the sum of its proper divisors (14069419724728).

15985532038472 is a wasteful number, since it uses less digits than its factorization.

15985532038472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216637 (or 1216633 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 62.

The spelling of 15985532038472 in words is "fifteen trillion, nine hundred eighty-five billion, five hundred thirty-two million, thirty-eight thousand, four hundred seventy-two".