56686671522 has 48 divisors (see below), whose sum is σ = 132288636480. Its totient is φ = 17439450336.

The previous prime is 56686671499. The next prime is 56686671523. The reversal of 56686671522 is 22517668665.

56686671522 is a `hidden beast` number, since 56 + 6 + 8 + 6 + 67 + 1 + 522 = 666.

It is a super-3 number, since 3×56686671522³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (56686671523) 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 23 ways as a sum of consecutive naturals, for example, 2065929 + ... + 2093187.

It is an arithmetic number, because the mean of its divisors is an integer number (2756013260).

Almost surely, 2^56686671522 is an apocalyptic number.

56686671522 is an abundant number, since it is smaller than the sum of its proper divisors (75601964958).

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

56686671522 is a wasteful number, since it uses less digits than its factorization.

56686671522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36167 (or 36164 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 56686671522 in words is "fifty-six billion, six hundred eighty-six million, six hundred seventy-one thousand, five hundred twenty-two".