125606423856 has 60 divisors (see below), whose sum is σ = 344693329832. Its totient is φ = 39405932544.

The previous prime is 125606423827. The next prime is 125606423857. The reversal of 125606423856 is 658324606521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (125606423857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4513465 + ... + 4541208.

Almost surely, 2^125606423856 is an apocalyptic number.

125606423856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125606423856 is an abundant number, since it is smaller than the sum of its proper divisors (219086905976).

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

125606423856 is a wasteful number, since it uses less digits than its factorization.

125606423856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054718 (or 9054695 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 125606423856 in words is "one hundred twenty-five billion, six hundred six million, four hundred twenty-three thousand, eight hundred fifty-six".