11657304556 has 12 divisors (see below), whose sum is σ = 20405122920. Its totient is φ = 5827269440.

The previous prime is 11657304539. The next prime is 11657304577. The reversal of 11657304556 is 65540375611.

It is a super-2 number, since 2×11657304556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326626 + ... + 360553.

It is an arithmetic number, because the mean of its divisors is an integer number (1700426910).

Almost surely, 2^11657304556 is an apocalyptic number.

It is an amenable number.

11657304556 is a deficient number, since it is larger than the sum of its proper divisors (8747818364).

11657304556 is a wasteful number, since it uses less digits than its factorization.

11657304556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691424 (or 691422 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 11657304556 in words is "eleven billion, six hundred fifty-seven million, three hundred four thousand, five hundred fifty-six".