11990534832 has 30 divisors (see below), whose sum is σ = 33556844412. Its totient is φ = 3996844896.

The previous prime is 11990534813. The next prime is 11990534849. The reversal of 11990534832 is 23843509911.

It is a happy number.

11990534832 is a `hidden beast` number, since 119 + 9 + 0 + 53 + 483 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41633658 + ... + 41633945.

Almost surely, 2^11990534832 is an apocalyptic number.

11990534832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11990534832 is an abundant number, since it is smaller than the sum of its proper divisors (21566309580).

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

11990534832 is a wasteful number, since it uses less digits than its factorization.

11990534832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83267617 (or 83267608 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 11990534832 in words is "eleven billion, nine hundred ninety million, five hundred thirty-four thousand, eight hundred thirty-two".