56667900479 has 2 divisors, whose sum is σ = 56667900480. Its totient is φ = 56667900478.

The previous prime is 56667900467. The next prime is 56667900491. The reversal of 56667900479 is 97400976665.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (56667900467) and next prime (56667900491).

It is a cyclic number.

It is not a de Polignac number, because 56667900479 - 2¹⁶ = 56667834943 is a prime.

It is a super-2 number, since 2×56667900479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56667900379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28333950239 + 28333950240.

It is an arithmetic number, because the mean of its divisors is an integer number (28333950240).

Almost surely, 2^56667900479 is an apocalyptic number.

56667900479 is a deficient number, since it is larger than the sum of its proper divisors (1).

56667900479 is an equidigital number, since it uses as much as digits as its factorization.

56667900479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 56667900479 in words is "fifty-six billion, six hundred sixty-seven million, nine hundred thousand, four hundred seventy-nine".