166601706014680 has 32 divisors (see below), whose sum is σ = 374855335727040. Its totient is φ = 66640416238080.

The previous prime is 166601706014633. The next prime is 166601706014687. The reversal of 166601706014680 is 86410607106661.

It is a super-2 number, since 2×166601706014680² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166601706014687) 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, 1979665 + ... + 18360895.

It is an arithmetic number, because the mean of its divisors is an integer number (11714229241470).

Almost surely, 2^{166601706014680} is an apocalyptic number.

166601706014680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166601706014680 is an abundant number, since it is smaller than the sum of its proper divisors (208253629712360).

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

166601706014680 is a wasteful number, since it uses less digits than its factorization.

166601706014680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16635499 (or 16635495 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 166601706014680 in words is "one hundred sixty-six trillion, six hundred one billion, seven hundred six million, fourteen thousand, six hundred eighty".