11556616051596 has 96 divisors (see below), whose sum is σ = 35388680785920. Its totient is φ = 2843733268800.

The previous prime is 11556616051583. The next prime is 11556616051597. The reversal of 11556616051596 is 69515061665511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (11556616051597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329118240 + ... + 329153351.

It is an arithmetic number, because the mean of its divisors is an integer number (368632091520).

Almost surely, 2^{11556616051596} is an apocalyptic number.

It is an amenable number.

11556616051596 is an abundant number, since it is smaller than the sum of its proper divisors (23832064734324).

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

11556616051596 is a wasteful number, since it uses less digits than its factorization.

11556616051596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658271635 (or 658271633 counting only the distinct ones).

The product of its (nonzero) digits is 7290000, while the sum is 57.

The spelling of 11556616051596 in words is "eleven trillion, five hundred fifty-six billion, six hundred sixteen million, fifty-one thousand, five hundred ninety-six".