11670996368656 has 135 divisors (see below), whose sum is σ = 23863268911503. Its totient is φ = 5529460631040.

The previous prime is 11670996368639. The next prime is 11670996368659. The reversal of 11670996368656 is 65686369907611.

The square root of 11670996368656 is 3416284.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 138071696400 + 11532924672256 = 371580^2 + 3396016^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11670996368659) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20730011031 + ... + 20730011593.

Almost surely, 2^{11670996368656} is an apocalyptic number.

11670996368656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11670996368656 is the 3416284-th square number.

It is an amenable number.

11670996368656 is an abundant number, since it is smaller than the sum of its proper divisors (12192272542847).

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

11670996368656 is an frugal number, since it uses more digits than its factorization.

11670996368656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 529079040, while the sum is 73.

The spelling of 11670996368656 in words is "eleven trillion, six hundred seventy billion, nine hundred ninety-six million, three hundred sixty-eight thousand, six hundred fifty-six".