56156663601 has 12 divisors (see below), whose sum is σ = 85886662212. Its totient is φ = 35235553536.

The previous prime is 56156663581. The next prime is 56156663627. The reversal of 56156663601 is 10636665165.

56156663601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52440542001 + 3716121600 = 228999^2 + 60960^2 .

It is not a de Polignac number, because 56156663601 - 2¹³ = 56156655409 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56156663201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183518356 + ... + 183518661.

It is an arithmetic number, because the mean of its divisors is an integer number (7157221851).

Almost surely, 2^56156663601 is an apocalyptic number.

56156663601 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

56156663601 is a deficient number, since it is larger than the sum of its proper divisors (29729998611).

56156663601 is a wasteful number, since it uses less digits than its factorization.

56156663601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367037040 (or 367037037 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 56156663601 in words is "fifty-six billion, one hundred fifty-six million, six hundred sixty-three thousand, six hundred one".