166340889366 has 16 divisors (see below), whose sum is σ = 352251295344. Its totient is φ = 52185377024.

The previous prime is 166340889359. The next prime is 166340889367. The reversal of 166340889366 is 663988043661.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166340889367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815396415 + ... + 815396618.

It is an arithmetic number, because the mean of its divisors is an integer number (22015705959).

Almost surely, 2^166340889366 is an apocalyptic number.

166340889366 is an abundant number, since it is smaller than the sum of its proper divisors (185910405978).

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

166340889366 is a wasteful number, since it uses less digits than its factorization.

166340889366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630793055.

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 166340889366 in words is "one hundred sixty-six billion, three hundred forty million, eight hundred eighty-nine thousand, three hundred sixty-six".