11745921136 has 40 divisors (see below), whose sum is σ = 23556984320. Its totient is φ = 5669201664.

The previous prime is 11745921133. The next prime is 11745921137. The reversal of 11745921136 is 63112954711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11745921133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2931 + ... + 153298.

It is an arithmetic number, because the mean of its divisors is an integer number (588924608).

Almost surely, 2^11745921136 is an apocalyptic number.

11745921136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11745921136 is an abundant number, since it is smaller than the sum of its proper divisors (11811063184).

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

11745921136 is a wasteful number, since it uses less digits than its factorization.

11745921136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156401 (or 156395 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The spelling of 11745921136 in words is "eleven billion, seven hundred forty-five million, nine hundred twenty-one thousand, one hundred thirty-six".