166941170544 has 40 divisors (see below), whose sum is σ = 432143091072. Its totient is φ = 55533714880.

The previous prime is 166941170453. The next prime is 166941170551. The reversal of 166941170544 is 445071149661.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 166941170493 and 166941170502.

It is a congruent number.

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, 3518124 + ... + 3565259.

Almost surely, 2^166941170544 is an apocalyptic number.

It is an amenable number.

166941170544 is an abundant number, since it is smaller than the sum of its proper divisors (265201920528).

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

166941170544 is a wasteful number, since it uses less digits than its factorization.

166941170544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083885 (or 7083879 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 166941170544 in words is "one hundred sixty-six billion, nine hundred forty-one million, one hundred seventy thousand, five hundred forty-four".