11666756712 has 64 divisors (see below), whose sum is σ = 31433976000. Its totient is φ = 3587088384.

The previous prime is 11666756711. The next prime is 11666756723. The reversal of 11666756712 is 21765766611.

It is a super-2 number, since 2×11666756712² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11666756711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426339 + ... + 452877.

It is an arithmetic number, because the mean of its divisors is an integer number (491155875).

Almost surely, 2^11666756712 is an apocalyptic number.

11666756712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11666756712 is an abundant number, since it is smaller than the sum of its proper divisors (19767219288).

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

11666756712 is a wasteful number, since it uses less digits than its factorization.

11666756712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27970 (or 27966 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The spelling of 11666756712 in words is "eleven billion, six hundred sixty-six million, seven hundred fifty-six thousand, seven hundred twelve".