11551531255432 has 64 divisors (see below), whose sum is σ = 25093468293120. Its totient is φ = 4882624800768.

The previous prime is 11551531255421. The next prime is 11551531255471. The reversal of 11551531255432 is 23455213515511.

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, 122989593 + ... + 123083479.

It is an arithmetic number, because the mean of its divisors is an integer number (392085442080).

Almost surely, 2^{11551531255432} is an apocalyptic number.

It is an amenable number.

11551531255432 is an abundant number, since it is smaller than the sum of its proper divisors (13541937037688).

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

11551531255432 is a wasteful number, since it uses less digits than its factorization.

11551531255432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124070 (or 124066 counting only the distinct ones).

The product of its digits is 450000, while the sum is 43.

The spelling of 11551531255432 in words is "eleven trillion, five hundred fifty-one billion, five hundred thirty-one million, two hundred fifty-five thousand, four hundred thirty-two".