39116166985 has 32 divisors (see below), whose sum is σ = 53927258112. Its totient is φ = 26681633280.

The previous prime is 39116166917. The next prime is 39116166997. The reversal of 39116166985 is 58966161193.

It is a de Polignac number, because none of the positive numbers 2^k-39116166985 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12777355 + ... + 12780415.

It is an arithmetic number, because the mean of its divisors is an integer number (1685226816).

Almost surely, 2^39116166985 is an apocalyptic number.

39116166985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39116166985 is a deficient number, since it is larger than the sum of its proper divisors (14811091127).

39116166985 is a wasteful number, since it uses less digits than its factorization.

39116166985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873.

The product of its digits is 2099520, while the sum is 55.

The spelling of 39116166985 in words is "thirty-nine billion, one hundred sixteen million, one hundred sixty-six thousand, nine hundred eighty-five".