11997032832 has 48 divisors (see below), whose sum is σ = 34522714980. Its totient is φ = 3999010560.

The previous prime is 11997032819. The next prime is 11997032843. The reversal of 11997032832 is 23823079911.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 5205894 + ... + 5208197.

Almost surely, 2^11997032832 is an apocalyptic number.

11997032832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11997032832 is an abundant number, since it is smaller than the sum of its proper divisors (22525682148).

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

11997032832 is a wasteful number, since it uses less digits than its factorization.

11997032832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10414111 (or 10414096 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 11997032832 in words is "eleven billion, nine hundred ninety-seven million, thirty-two thousand, eight hundred thirty-two".