56745564466 has 4 divisors (see below), whose sum is σ = 85118346702. Its totient is φ = 28372782232.

The previous prime is 56745564389. The next prime is 56745564527. The reversal of 56745564466 is 66446554765.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54552609225 + 2192955241 = 233565^2 + 46829^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56745564466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14186391115 + ... + 14186391118.

Almost surely, 2^56745564466 is an apocalyptic number.

56745564466 is a deficient number, since it is larger than the sum of its proper divisors (28372782236).

56745564466 is a wasteful number, since it uses less digits than its factorization.

56745564466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28372782235.

The product of its digits is 72576000, while the sum is 58.

The spelling of 56745564466 in words is "fifty-six billion, seven hundred forty-five million, five hundred sixty-four thousand, four hundred sixty-six".