166897131260 has 48 divisors (see below), whose sum is σ = 370366244640. Its totient is φ = 62999101440.

The previous prime is 166897131259. The next prime is 166897131337. The reversal of 166897131260 is 62131798661.

It is a junction number, because it is equal to n+sod(n) for n = 166897131199 and 166897131208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756821 + ... + 952140.

It is an arithmetic number, because the mean of its divisors is an integer number (7715963430).

Almost surely, 2^166897131260 is an apocalyptic number.

166897131260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166897131260 is an abundant number, since it is smaller than the sum of its proper divisors (203469113380).

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

166897131260 is a wasteful number, since it uses less digits than its factorization.

166897131260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709246 (or 1709244 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 166897131260 in words is "one hundred sixty-six billion, eight hundred ninety-seven million, one hundred thirty-one thousand, two hundred sixty".