125640623200 has 36 divisors (see below), whose sum is σ = 306720173340. Its totient is φ = 50256248960.

The previous prime is 125640623159. The next prime is 125640623219. The reversal of 125640623200 is 2326046521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78524590 + ... + 78526189.

It is an arithmetic number, because the mean of its divisors is an integer number (8520004815).

Almost surely, 2^125640623200 is an apocalyptic number.

125640623200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125640623200 is an abundant number, since it is smaller than the sum of its proper divisors (181079550140).

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

125640623200 is a wasteful number, since it uses less digits than its factorization.

125640623200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157050799 (or 157050786 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 125640623200 its reverse (2326046521), we get a palindrome (127966669721).

The spelling of 125640623200 in words is "one hundred twenty-five billion, six hundred forty million, six hundred twenty-three thousand, two hundred".