56646004650 has 24 divisors (see below), whose sum is σ = 140482091904. Its totient is φ = 15105601200.

The previous prime is 56646004643. The next prime is 56646004781. The reversal of 56646004650 is 5640064665.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188819866 + ... + 188820165.

It is an arithmetic number, because the mean of its divisors is an integer number (5853420496).

Almost surely, 2^56646004650 is an apocalyptic number.

56646004650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56646004650 is an abundant number, since it is smaller than the sum of its proper divisors (83836087254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56646004650 is a wasteful number, since it uses less digits than its factorization.

56646004650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377640046 (or 377640041 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 56646004650 in words is "fifty-six billion, six hundred forty-six million, four thousand, six hundred fifty".