56106662731 has 8 divisors (see below), whose sum is σ = 67496737280. Its totient is φ = 45560297448.

The previous prime is 56106662723. The next prime is 56106662839. The reversal of 56106662731 is 13726660165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56106662731 - 2³ = 56106662723 is a prime.

It is a super-2 number, since 2×56106662731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56106662701) 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 7 ways as a sum of consecutive naturals, for example, 210927171 + ... + 210927436.

It is an arithmetic number, because the mean of its divisors is an integer number (8437092160).

Almost surely, 2^56106662731 is an apocalyptic number.

56106662731 is a deficient number, since it is larger than the sum of its proper divisors (11390074549).

56106662731 is a wasteful number, since it uses less digits than its factorization.

56106662731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421854633.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 56106662731 in words is "fifty-six billion, one hundred six million, six hundred sixty-two thousand, seven hundred thirty-one".