11662881400664 has 16 divisors (see below), whose sum is σ = 23550048982320. Its totient is φ = 5382868338720.

The previous prime is 11662881400657. The next prime is 11662881400693. The reversal of 11662881400664 is 46600418826611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56071545092 + ... + 56071545299.

It is an arithmetic number, because the mean of its divisors is an integer number (1471878061395).

Almost surely, 2^{11662881400664} is an apocalyptic number.

It is an amenable number.

11662881400664 is an abundant number, since it is smaller than the sum of its proper divisors (11887167581656).

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

11662881400664 is a wasteful number, since it uses less digits than its factorization.

11662881400664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112143090410 (or 112143090406 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 11662881400664 in words is "eleven trillion, six hundred sixty-two billion, eight hundred eighty-one million, four hundred thousand, six hundred sixty-four".