11556802432 has 32 divisors (see below), whose sum is σ = 26312364720. Its totient is φ = 4952914944.

The previous prime is 11556802427. The next prime is 11556802451. The reversal of 11556802432 is 23420865511.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×11556802432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11556802391 and 11556802400.

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, 6448213 + ... + 6450004.

Almost surely, 2^11556802432 is an apocalyptic number.

It is an amenable number.

11556802432 is an abundant number, since it is smaller than the sum of its proper divisors (14755562288).

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

11556802432 is an equidigital number, since it uses as much as digits as its factorization.

11556802432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12898238 (or 12898226 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 11556802432 in words is "eleven billion, five hundred fifty-six million, eight hundred two thousand, four hundred thirty-two".