56220766137 has 12 divisors (see below), whose sum is σ = 81243530004. Its totient is φ = 37464007680.

The previous prime is 56220766123. The next prime is 56220766177. The reversal of 56220766137 is 73166702265.

56220766137 is a `hidden beast` number, since 5 + 6 + 2 + 20 + 7 + 6 + 613 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53384564601 + 2836201536 = 231051^2 + 53256^2 .

It is not a de Polignac number, because 56220766137 - 2⁷ = 56220766009 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 a junction number, because it is equal to n+sod(n) for n = 56220766092 and 56220766101.

It is not an unprimeable number, because it can be changed into a prime (56220766177) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1353664 + ... + 1394577.

It is an arithmetic number, because the mean of its divisors is an integer number (6770294167).

Almost surely, 2^56220766137 is an apocalyptic number.

It is an amenable number.

56220766137 is a deficient number, since it is larger than the sum of its proper divisors (25022763867).

56220766137 is a wasteful number, since it uses less digits than its factorization.

56220766137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750520 (or 2750517 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 56220766137 in words is "fifty-six billion, two hundred twenty million, seven hundred sixty-six thousand, one hundred thirty-seven".