15551025410432 has 64 divisors (see below), whose sum is σ = 32328458380800. Its totient is φ = 7437235474944.

The previous prime is 15551025410423. The next prime is 15551025410461. The reversal of 15551025410432 is 23401452015551.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165426419 + ... + 165520397.

It is an arithmetic number, because the mean of its divisors is an integer number (505132162200).

Almost surely, 2^{15551025410432} is an apocalyptic number.

It is an amenable number.

15551025410432 is an abundant number, since it is smaller than the sum of its proper divisors (16777432970368).

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

15551025410432 is an equidigital number, since it uses as much as digits as its factorization.

15551025410432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150223 (or 150211 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 15551025410432 its reverse (23401452015551), we get a palindrome (38952477425983).

The spelling of 15551025410432 in words is "fifteen trillion, five hundred fifty-one billion, twenty-five million, four hundred ten thousand, four hundred thirty-two".