11956901632 has 36 divisors (see below), whose sum is σ = 25703034280. Its totient is φ = 5518568448.

The previous prime is 11956901623. The next prime is 11956901633. The reversal of 11956901632 is 23610965911.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11956901633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1793082 + ... + 1799737.

Almost surely, 2^11956901632 is an apocalyptic number.

It is an amenable number.

11956901632 is an abundant number, since it is smaller than the sum of its proper divisors (13746132648).

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

11956901632 is an equidigital number, since it uses as much as digits as its factorization.

11956901632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592848 (or 3592834 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 11956901632 in words is "eleven billion, nine hundred fifty-six million, nine hundred one thousand, six hundred thirty-two".