11746864656 has 30 divisors (see below), whose sum is σ = 32874906350. Its totient is φ = 3915621504.

The previous prime is 11746864637. The next prime is 11746864693. The reversal of 11746864656 is 65646864711.

11746864656 is a `hidden beast` number, since 1 + 174 + 6 + 8 + 6 + 465 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5907459600 + 5839405056 = 76860^2 + 76416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40787581 + ... + 40787868.

Almost surely, 2^11746864656 is an apocalyptic number.

11746864656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11746864656 is an abundant number, since it is smaller than the sum of its proper divisors (21128041694).

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

11746864656 is a wasteful number, since it uses less digits than its factorization.

11746864656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81575463 (or 81575454 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 11746864656 in words is "eleven billion, seven hundred forty-six million, eight hundred sixty-four thousand, six hundred fifty-six".