166311618260 has 24 divisors (see below), whose sum is σ = 349262069856. Its totient is φ = 66523186080.

The previous prime is 166311618259. The next prime is 166311618269. The reversal of 166311618260 is 62816113661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166311618269) 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, 1678295 + ... + 1774625.

It is an arithmetic number, because the mean of its divisors is an integer number (14552586244).

Almost surely, 2^166311618260 is an apocalyptic number.

166311618260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166311618260 is an abundant number, since it is smaller than the sum of its proper divisors (182950451596).

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

166311618260 is a wasteful number, since it uses less digits than its factorization.

166311618260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182663 (or 182661 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 166311618260 in words is "one hundred sixty-six billion, three hundred eleven million, six hundred eighteen thousand, two hundred sixty".