125446017966920 has 128 divisors (see below), whose sum is σ = 333776518387200. Its totient is φ = 41517281949696.

The previous prime is 125446017966821. The next prime is 125446017966931. The reversal of 125446017966920 is 29669710644521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33093989 + ... + 36689291.

It is an arithmetic number, because the mean of its divisors is an integer number (2607629049900).

Almost surely, 2^{125446017966920} is an apocalyptic number.

125446017966920 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 125446017966920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166888259193600).

125446017966920 is an abundant number, since it is smaller than the sum of its proper divisors (208330500420280).

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

125446017966920 is a wasteful number, since it uses less digits than its factorization.

125446017966920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599647 (or 3599643 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 125446017966920 in words is "one hundred twenty-five trillion, four hundred forty-six billion, seventeen million, nine hundred sixty-six thousand, nine hundred twenty".