125545637744 has 20 divisors (see below), whose sum is σ = 244650717096. Its totient is φ = 62409968832.

The previous prime is 125545637743. The next prime is 125545637803. The reversal of 125545637744 is 447736545521.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125545637743) 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, 22675274 + ... + 22680809.

Almost surely, 2^125545637744 is an apocalyptic number.

It is an amenable number.

125545637744 is a deficient number, since it is larger than the sum of its proper divisors (119105079352).

125545637744 is a wasteful number, since it uses less digits than its factorization.

125545637744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45356264 (or 45356258 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 53.

The spelling of 125545637744 in words is "one hundred twenty-five billion, five hundred forty-five million, six hundred thirty-seven thousand, seven hundred forty-four".