56616061055099 has 16 divisors (see below), whose sum is σ = 71103373387200. Its totient is φ = 44795125226880.

The previous prime is 56616061055077. The next prime is 56616061055107. The reversal of 56616061055099 is 99055016061665.

It is a happy number.

It is not a de Polignac number, because 56616061055099 - 2³² = 56611766087803 is a prime.

It is a super-2 number, since 2×56616061055099² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56616061055069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6348511022 + ... + 6348519939.

It is an arithmetic number, because the mean of its divisors is an integer number (4443960836700).

Almost surely, 2^{56616061055099} is an apocalyptic number.

56616061055099 is a deficient number, since it is larger than the sum of its proper divisors (14487312332101).

56616061055099 is a wasteful number, since it uses less digits than its factorization.

56616061055099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12697030995 (or 12697030981 counting only the distinct ones).

The product of its (nonzero) digits is 13122000, while the sum is 59.

The spelling of 56616061055099 in words is "fifty-six trillion, six hundred sixteen billion, sixty-one million, fifty-five thousand, ninety-nine".