166253426466 has 16 divisors (see below), whose sum is σ = 333398296704. Its totient is φ = 55269234864.

The previous prime is 166253426447. The next prime is 166253426477. The reversal of 166253426466 is 664624352661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37141066 + ... + 37145541.

It is an arithmetic number, because the mean of its divisors is an integer number (20837393544).

Almost surely, 2^166253426466 is an apocalyptic number.

166253426466 is an abundant number, since it is smaller than the sum of its proper divisors (167144870238).

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

166253426466 is a wasteful number, since it uses less digits than its factorization.

166253426466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74286985.

The product of its digits is 7464960, while the sum is 51.

The spelling of 166253426466 in words is "one hundred sixty-six billion, two hundred fifty-three million, four hundred twenty-six thousand, four hundred sixty-six".