56101166615611 has 16 divisors (see below), whose sum is σ = 63635697492640. Its totient is φ = 49029863811840.

The previous prime is 56101166615591. The next prime is 56101166615621. The reversal of 56101166615611 is 11651666110165.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56101166615611 - 2¹⁵ = 56101166582843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56101166615621) 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, 69658290 + ... + 70459063.

It is an arithmetic number, because the mean of its divisors is an integer number (3977231093290).

Almost surely, 2^{56101166615611} is an apocalyptic number.

56101166615611 is a deficient number, since it is larger than the sum of its proper divisors (7534530877029).

56101166615611 is a wasteful number, since it uses less digits than its factorization.

56101166615611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140119006.

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 56101166615611 in words is "fifty-six trillion, one hundred one billion, one hundred sixty-six million, six hundred fifteen thousand, six hundred eleven".