550640795664 has 20 divisors (see below), whose sum is σ = 1422488722256. Its totient is φ = 183546931872.

The previous prime is 550640795603. The next prime is 550640795699. The reversal of 550640795664 is 466597046055.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5735841574 + ... + 5735841669.

Almost surely, 2^550640795664 is an apocalyptic number.

It is an amenable number.

550640795664 is an abundant number, since it is smaller than the sum of its proper divisors (871847926592).

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

550640795664 is a wasteful number, since it uses less digits than its factorization.

550640795664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11471683254 (or 11471683248 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 57.

The spelling of 550640795664 in words is "five hundred fifty billion, six hundred forty million, seven hundred ninety-five thousand, six hundred sixty-four".