125645699232 has 240 divisors, whose sum is σ = 382089641472. Its totient is φ = 40461949440.

The previous prime is 125645699189. The next prime is 125645699261. The reversal of 125645699232 is 232996546521.

125645699232 is a `hidden beast` number, since 1 + 2 + 56 + 4 + 569 + 9 + 23 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70467813 + ... + 70469595.

Almost surely, 2^125645699232 is an apocalyptic number.

125645699232 is a gapful number since it is divisible by the number (12) 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 125645699232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191044820736).

125645699232 is an abundant number, since it is smaller than the sum of its proper divisors (256443942240).

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

125645699232 is a wasteful number, since it uses less digits than its factorization.

125645699232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2696 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The spelling of 125645699232 in words is "one hundred twenty-five billion, six hundred forty-five million, six hundred ninety-nine thousand, two hundred thirty-two".