550050651666 has 40 divisors (see below), whose sum is σ = 1243428210684. Its totient is φ = 181727642880.

The previous prime is 550050651653. The next prime is 550050651677. The reversal of 550050651666 is 666156050055.

It can be written as a sum of positive squares in 2 ways, for example, as 549049878441 + 1000773225 = 740979^2 + 31635^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15005475 + ... + 15042086.

Almost surely, 2^550050651666 is an apocalyptic number.

550050651666 is an abundant number, since it is smaller than the sum of its proper divisors (693377559018).

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

550050651666 is a wasteful number, since it uses less digits than its factorization.

550050651666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30047688 (or 30047679 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 550050651666 in words is "five hundred fifty billion, fifty million, six hundred fifty-one thousand, six hundred sixty-six".