38166820530 has 64 divisors (see below), whose sum is σ = 99609989760. Its totient is φ = 9320223744.

The previous prime is 38166820507. The next prime is 38166820543. The reversal of 38166820530 is 3502866183.

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, 992440 + ... + 1030179.

It is an arithmetic number, because the mean of its divisors is an integer number (1556406090).

Almost surely, 2^38166820530 is an apocalyptic number.

38166820530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38166820530 is an abundant number, since it is smaller than the sum of its proper divisors (61443169230).

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

38166820530 is a wasteful number, since it uses less digits than its factorization.

38166820530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022683.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 38166820530 in words is "thirty-eight billion, one hundred sixty-six million, eight hundred twenty thousand, five hundred thirty".