125207645536 has 24 divisors (see below), whose sum is σ = 246705845904. Its totient is φ = 62552192640.

The previous prime is 125207645531. The next prime is 125207645593. The reversal of 125207645536 is 635546702521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125207645531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574020 + ... + 1651651.

It is an arithmetic number, because the mean of its divisors is an integer number (10279410246).

Almost surely, 2^125207645536 is an apocalyptic number.

125207645536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125207645536 is a deficient number, since it is larger than the sum of its proper divisors (121498200368).

125207645536 is a wasteful number, since it uses less digits than its factorization.

125207645536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226894 (or 3226886 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 125207645536 in words is "one hundred twenty-five billion, two hundred seven million, six hundred forty-five thousand, five hundred thirty-six".