56566100649 has 8 divisors (see below), whose sum is σ = 75422751840. Its totient is φ = 37710091616.

The previous prime is 56566100639. The next prime is 56566100681. The reversal of 56566100649 is 94600166565.

56566100649 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 a de Polignac number, because none of the positive numbers 2^k-56566100649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56566100598 and 56566100607.

It is not an unprimeable number, because it can be changed into a prime (56566100639) 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, 110254 + ... + 353960.

It is an arithmetic number, because the mean of its divisors is an integer number (9427843980).

Almost surely, 2^56566100649 is an apocalyptic number.

It is an amenable number.

56566100649 is a deficient number, since it is larger than the sum of its proper divisors (18856651191).

56566100649 is a wasteful number, since it uses less digits than its factorization.

56566100649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321079.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 56566100649 in words is "fifty-six billion, five hundred sixty-six million, one hundred thousand, six hundred forty-nine".