166006167281864 has 96 divisors (see below), whose sum is σ = 390180927386880. Its totient is φ = 65630856445056.

The previous prime is 166006167281819. The next prime is 166006167281881. The reversal of 166006167281864 is 468182761600661.

It is a super-2 number, since 2×166006167281864² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166006167281797 and 166006167281806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2408882 + ... + 18379745.

It is an arithmetic number, because the mean of its divisors is an integer number (4064384660280).

Almost surely, 2^{166006167281864} is an apocalyptic number.

166006167281864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166006167281864 is an abundant number, since it is smaller than the sum of its proper divisors (224174760105016).

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

166006167281864 is a wasteful number, since it uses less digits than its factorization.

166006167281864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20790227 (or 20790216 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 166006167281864 in words is "one hundred sixty-six trillion, six billion, one hundred sixty-seven million, two hundred eighty-one thousand, eight hundred sixty-four".