166309837883 has 12 divisors (see below), whose sum is σ = 194198455152. Its totient is φ = 139518270480.

The previous prime is 166309837879. The next prime is 166309837933. The reversal of 166309837883 is 388738903661.

It is not a de Polignac number, because 166309837883 - 2² = 166309837879 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166309837853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5362208 + ... + 5393133.

It is an arithmetic number, because the mean of its divisors is an integer number (16183204596).

Almost surely, 2^166309837883 is an apocalyptic number.

166309837883 is a deficient number, since it is larger than the sum of its proper divisors (27888617269).

166309837883 is an equidigital number, since it uses as much as digits as its factorization.

166309837883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10755442 (or 10755395 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 166309837883 in words is "one hundred sixty-six billion, three hundred nine million, eight hundred thirty-seven thousand, eight hundred eighty-three".