550156635644 has 24 divisors (see below), whose sum is σ = 1200341751168. Its totient is φ = 214346741040.

The previous prime is 550156635617. The next prime is 550156635653. The reversal of 550156635644 is 446536651055.

It is a junction number, because it is equal to n+sod(n) for n = 550156635592 and 550156635601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893111114 + ... + 893111729.

It is an arithmetic number, because the mean of its divisors is an integer number (50014239632).

Almost surely, 2^550156635644 is an apocalyptic number.

It is an amenable number.

550156635644 is an abundant number, since it is smaller than the sum of its proper divisors (650185115524).

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

550156635644 is a wasteful number, since it uses less digits than its factorization.

550156635644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786222865 (or 1786222863 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 550156635644 in words is "five hundred fifty billion, one hundred fifty-six million, six hundred thirty-five thousand, six hundred forty-four".