50005155556666 has 32 divisors (see below), whose sum is σ = 78228157962240. Its totient is φ = 23945996304000.

The previous prime is 50005155556651. The next prime is 50005155556703. The reversal of 50005155556666 is 66665555150005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12575350 + ... + 16067038.

It is an arithmetic number, because the mean of its divisors is an integer number (2444629936320).

Almost surely, 2^{50005155556666} is an apocalyptic number.

50005155556666 is a deficient number, since it is larger than the sum of its proper divisors (28223002405574).

50005155556666 is a wasteful number, since it uses less digits than its factorization.

50005155556666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494110.

The product of its (nonzero) digits is 20250000, while the sum is 55.

The spelling of 50005155556666 in words is "fifty trillion, five billion, one hundred fifty-five million, five hundred fifty-six thousand, six hundred sixty-six".