166677038804808 has 48 divisors (see below), whose sum is σ = 515905120111680. Its totient is φ = 47622011086944.

The previous prime is 166677038804807. The next prime is 166677038804821. The reversal of 166677038804808 is 808408830776661.

166677038804808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (166677038804803) 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, 165354204660 + ... + 165354205667.

It is an arithmetic number, because the mean of its divisors is an integer number (10748023335660).

Almost surely, 2^{166677038804808} is an apocalyptic number.

166677038804808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

166677038804808 is an abundant number, since it is smaller than the sum of its proper divisors (349228081306872).

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

166677038804808 is a wasteful number, since it uses less digits than its factorization.

166677038804808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330708410346 (or 330708410339 counting only the distinct ones).

The product of its (nonzero) digits is 520224768, while the sum is 72.

The spelling of 166677038804808 in words is "one hundred sixty-six trillion, six hundred seventy-seven billion, thirty-eight million, eight hundred four thousand, eight hundred eight".