56668337187407 has 16 divisors (see below), whose sum is σ = 61843383463680. Its totient is φ = 51497189640000.

The previous prime is 56668337187379. The next prime is 56668337187409. The reversal of 56668337187407 is 70478173386665.

It is a cyclic number.

It is not a de Polignac number, because 56668337187407 - 2³⁸ = 56393459280463 is a prime.

It is a super-2 number, since 2×56668337187407² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56668337187409) 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, 645741782 + ... + 645829532.

It is an arithmetic number, because the mean of its divisors is an integer number (3865211466480).

Almost surely, 2^{56668337187407} is an apocalyptic number.

56668337187407 is a deficient number, since it is larger than the sum of its proper divisors (5175046276273).

56668337187407 is a wasteful number, since it uses less digits than its factorization.

56668337187407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109294.

The product of its (nonzero) digits is 853493760, while the sum is 71.

The spelling of 56668337187407 in words is "fifty-six trillion, six hundred sixty-eight billion, three hundred thirty-seven million, one hundred eighty-seven thousand, four hundred seven".