56667404767 has 8 divisors (see below), whose sum is σ = 60084244800. Its totient is φ = 53259838464.

The previous prime is 56667404741. The next prime is 56667404777. The reversal of 56667404767 is 76740476665.

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

It is a cyclic number.

It is not a de Polignac number, because 56667404767 - 2¹¹ = 56667402719 is a prime.

It is a super-2 number, since 2×56667404767² (a number of 22 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 (56667404737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2305842 + ... + 2330287.

It is an arithmetic number, because the mean of its divisors is an integer number (7510530600).

Almost surely, 2^56667404767 is an apocalyptic number.

56667404767 is a deficient number, since it is larger than the sum of its proper divisors (3416840033).

56667404767 is a wasteful number, since it uses less digits than its factorization.

56667404767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636865.

The product of its (nonzero) digits is 35562240, while the sum is 58.

The spelling of 56667404767 in words is "fifty-six billion, six hundred sixty-seven million, four hundred four thousand, seven hundred sixty-seven".