166417032056 has 16 divisors (see below), whose sum is σ = 340398474840. Its totient is φ = 75644105440.

The previous prime is 166417032049. The next prime is 166417032127. The reversal of 166417032056 is 650230714661.

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, 945551231 + ... + 945551406.

Almost surely, 2^166417032056 is an apocalyptic number.

It is an amenable number.

166417032056 is an abundant number, since it is smaller than the sum of its proper divisors (173981442784).

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

166417032056 is a wasteful number, since it uses less digits than its factorization.

166417032056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891102654 (or 1891102650 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 166417032056 in words is "one hundred sixty-six billion, four hundred seventeen million, thirty-two thousand, fifty-six".