125606645436 has 24 divisors (see below), whose sum is σ = 295221462480. Its totient is φ = 41563268992.

The previous prime is 125606645419. The next prime is 125606645449. The reversal of 125606645436 is 634546606521.

It is a congruent number.

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, 38199891 + ... + 38203178.

It is an arithmetic number, because the mean of its divisors is an integer number (12300894270).

Almost surely, 2^125606645436 is an apocalyptic number.

It is an amenable number.

125606645436 is an abundant number, since it is smaller than the sum of its proper divisors (169614817044).

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

125606645436 is a wasteful number, since it uses less digits than its factorization.

125606645436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76403213 (or 76403211 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 125606645436 in words is "one hundred twenty-five billion, six hundred six million, six hundred forty-five thousand, four hundred thirty-six".