38642183166 has 64 divisors (see below), whose sum is σ = 86261932800. Its totient is φ = 11468376576.

The previous prime is 38642183143. The next prime is 38642183197. The reversal of 38642183166 is 66138124683.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1359981 + ... + 1388103.

It is an arithmetic number, because the mean of its divisors is an integer number (1347842700).

Almost surely, 2^38642183166 is an apocalyptic number.

38642183166 is an abundant number, since it is smaller than the sum of its proper divisors (47619749634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38642183166 is a wasteful number, since it uses less digits than its factorization.

38642183166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28873.

The product of its digits is 995328, while the sum is 48.

The spelling of 38642183166 in words is "thirty-eight billion, six hundred forty-two million, one hundred eighty-three thousand, one hundred sixty-six".