11969571120 has 80 divisors (see below), whose sum is σ = 39959963232. Its totient is φ = 2946355200.

The previous prime is 11969571101. The next prime is 11969571167. The reversal of 11969571120 is 2117596911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1915081 + ... + 1921320.

Almost surely, 2^11969571120 is an apocalyptic number.

11969571120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11969571120 is an abundant number, since it is smaller than the sum of its proper divisors (27990392112).

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

11969571120 is a wasteful number, since it uses less digits than its factorization.

11969571120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836430 (or 3836424 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 42.

The spelling of 11969571120 in words is "eleven billion, nine hundred sixty-nine million, five hundred seventy-one thousand, one hundred twenty".