11742064656 has 40 divisors (see below), whose sum is σ = 34667049024. Its totient is φ = 3354875520.

The previous prime is 11742064603. The next prime is 11742064669. The reversal of 11742064656 is 65646024711.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17472975 + ... + 17473646.

Almost surely, 2^11742064656 is an apocalyptic number.

11742064656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11742064656 is an abundant number, since it is smaller than the sum of its proper divisors (22924984368).

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

11742064656 is a wasteful number, since it uses less digits than its factorization.

11742064656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34946639 (or 34946633 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 11742064656 in words is "eleven billion, seven hundred forty-two million, sixty-four thousand, six hundred fifty-six".