38540625066 has 40 divisors (see below), whose sum is σ = 86388714720. Its totient is φ = 12842536392.

The previous prime is 38540625043. The next prime is 38540625077. The reversal of 38540625066 is 66052604583.

38540625066 is a `hidden beast` number, since 3 + 85 + 4 + 0 + 62 + 506 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 460165 + ... + 537431.

It is an arithmetic number, because the mean of its divisors is an integer number (2159717868).

Almost surely, 2^38540625066 is an apocalyptic number.

38540625066 is an abundant number, since it is smaller than the sum of its proper divisors (47848089654).

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

38540625066 is a wasteful number, since it uses less digits than its factorization.

38540625066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80360 (or 80351 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 38540625066 in words is "thirty-eight billion, five hundred forty million, six hundred twenty-five thousand, sixty-six".