125801664 has 56 divisors (see below), whose sum is σ = 333695040. Its totient is φ = 41827584.

The previous prime is 125801647. The next prime is 125801693. The reversal of 125801664 is 466108521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122947 + ... + 123965.

It is an arithmetic number, because the mean of its divisors is an integer number (5958840).

Almost surely, 2^125801664 is an apocalyptic number.

It is an amenable number.

125801664 is an abundant number, since it is smaller than the sum of its proper divisors (207893376).

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

125801664 is a wasteful number, since it uses less digits than its factorization.

125801664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 125801664 is about 11216.1340933496. The cubic root of 125801664 is about 501.0666084084.

The spelling of 125801664 in words is "one hundred twenty-five million, eight hundred one thousand, six hundred sixty-four".