11651111100656 has 20 divisors (see below), whose sum is σ = 22600185406272. Its totient is φ = 5818805189376.

The previous prime is 11651111100631. The next prime is 11651111100659. The reversal of 11651111100656 is 65600111115611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11651111100659) 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, 421883321 + ... + 421910936.

Almost surely, 2^{11651111100656} is an apocalyptic number.

11651111100656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11651111100656 is a deficient number, since it is larger than the sum of its proper divisors (10949074305616).

11651111100656 is an equidigital number, since it uses as much as digits as its factorization.

11651111100656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843795128 (or 843795122 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 35.

The spelling of 11651111100656 in words is "eleven trillion, six hundred fifty-one billion, one hundred eleven million, one hundred thousand, six hundred fifty-six".