11651313556 has 12 divisors (see below), whose sum is σ = 20390839168. Its totient is φ = 5825359512.

The previous prime is 11651313529. The next prime is 11651313559. The reversal of 11651313556 is 65531315611.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11651313559) 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, 30205 + ... + 155611.

Almost surely, 2^11651313556 is an apocalyptic number.

It is an amenable number.

11651313556 is a deficient number, since it is larger than the sum of its proper divisors (8739525612).

11651313556 is a wasteful number, since it uses less digits than its factorization.

11651313556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148638 (or 148636 counting only the distinct ones).

The product of its digits is 40500, while the sum is 37.

The spelling of 11651313556 in words is "eleven billion, six hundred fifty-one million, three hundred thirteen thousand, five hundred fifty-six".