550345251516 has 24 divisors (see below), whose sum is σ = 1291828379520. Its totient is φ = 182349922992.

The previous prime is 550345251493. The next prime is 550345251529. The reversal of 550345251516 is 615152543055.

It is a happy number.

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, 137309686 + ... + 137313693.

It is an arithmetic number, because the mean of its divisors is an integer number (53826182480).

Almost surely, 2^550345251516 is an apocalyptic number.

It is an amenable number.

550345251516 is an abundant number, since it is smaller than the sum of its proper divisors (741483128004).

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

550345251516 is a wasteful number, since it uses less digits than its factorization.

550345251516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274623553 (or 274623551 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 550345251516 in words is "five hundred fifty billion, three hundred forty-five million, two hundred fifty-one thousand, five hundred sixteen".