166925252560 has 160 divisors (see below), whose sum is σ = 433889943552. Its totient is φ = 59211440640.

The previous prime is 166925252537. The next prime is 166925252561. The reversal of 166925252560 is 65252529661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166925252561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6059137 + ... + 6086623.

Almost surely, 2^166925252560 is an apocalyptic number.

166925252560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166925252560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216944971776).

166925252560 is an abundant number, since it is smaller than the sum of its proper divisors (266964690992).

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

166925252560 is a wasteful number, since it uses less digits than its factorization.

166925252560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27681 (or 27675 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 166925252560 in words is "one hundred sixty-six billion, nine hundred twenty-five million, two hundred fifty-two thousand, five hundred sixty".