166422364544 has 32 divisors (see below), whose sum is σ = 334478606040. Its totient is φ = 82474792960.

The previous prime is 166422364481. The next prime is 166422364553. The reversal of 166422364544 is 445463224661.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5738522 + ... + 5767449.

Almost surely, 2^166422364544 is an apocalyptic number.

It is an amenable number.

166422364544 is an abundant number, since it is smaller than the sum of its proper divisors (168056241496).

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

166422364544 is a wasteful number, since it uses less digits than its factorization.

166422364544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11506098 (or 11506086 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 47.

The spelling of 166422364544 in words is "one hundred sixty-six billion, four hundred twenty-two million, three hundred sixty-four thousand, five hundred forty-four".