166461215160204 has 72 divisors (see below), whose sum is σ = 444547926164160. Its totient is φ = 52433857926912.

The previous prime is 166461215160203. The next prime is 166461215160301. The reversal of 166461215160204 is 402061512164661.

166461215160204 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 6 + 121 + 516 + 0 + 2 + 0 + 4 = 666.

166461215160204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166461215160204² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166461215160204.

It is not an unprimeable number, because it can be changed into a prime (166461215160203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1696180809 + ... + 1696278944.

It is an arithmetic number, because the mean of its divisors is an integer number (6174276752280).

Almost surely, 2^{166461215160204} is an apocalyptic number.

It is an amenable number.

166461215160204 is an abundant number, since it is smaller than the sum of its proper divisors (278086711003956).

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

166461215160204 is a wasteful number, since it uses less digits than its factorization.

166461215160204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392459839 (or 3392459834 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 166461215160204 in words is "one hundred sixty-six trillion, four hundred sixty-one billion, two hundred fifteen million, one hundred sixty thousand, two hundred four".