50135600666 has 16 divisors (see below), whose sum is σ = 76200301800. Its totient is φ = 24737438208.

The previous prime is 50135600663. The next prime is 50135600737. The reversal of 50135600666 is 66600653105.

It can be written as a sum of positive squares in 4 ways, for example, as 25978670041 + 24156930625 = 161179^2 + 155425^2 .

It is not an unprimeable number, because it can be changed into a prime (50135600663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432611 + ... + 536118.

Almost surely, 2^50135600666 is an apocalyptic number.

50135600666 is a deficient number, since it is larger than the sum of its proper divisors (26064701134).

50135600666 is a wasteful number, since it uses less digits than its factorization.

50135600666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969073.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 50135600666 in words is "fifty billion, one hundred thirty-five million, six hundred thousand, six hundred sixty-six".