56664412849 has 8 divisors (see below), whose sum is σ = 63253298592. Its totient is φ = 50315123040.

The previous prime is 56664412817. The next prime is 56664412873. The reversal of 56664412849 is 94821446665.

It is a happy number.

56664412849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56664412849 - 2⁵ = 56664412817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56664412849.

It is not an unprimeable number, because it can be changed into a prime (56664472849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59898484 + ... + 59899429.

It is an arithmetic number, because the mean of its divisors is an integer number (7906662324).

Almost surely, 2^56664412849 is an apocalyptic number.

It is an amenable number.

56664412849 is a deficient number, since it is larger than the sum of its proper divisors (6588885743).

56664412849 is a wasteful number, since it uses less digits than its factorization.

56664412849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119797967.

The product of its digits is 9953280, while the sum is 55.

The spelling of 56664412849 in words is "fifty-six billion, six hundred sixty-four million, four hundred twelve thousand, eight hundred forty-nine".