50565166066 has 4 divisors (see below), whose sum is σ = 75847749102. Its totient is φ = 25282583032.

The previous prime is 50565166049. The next prime is 50565166087. The reversal of 50565166066 is 66066156505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38394443025 + 12170723041 = 195945^2 + 110321^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12641291515 + ... + 12641291518.

Almost surely, 2^50565166066 is an apocalyptic number.

50565166066 is a deficient number, since it is larger than the sum of its proper divisors (25282583036).

50565166066 is a wasteful number, since it uses less digits than its factorization.

50565166066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25282583035.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 50565166066 in words is "fifty billion, five hundred sixty-five million, one hundred sixty-six thousand, sixty-six".