125438620664 has 32 divisors (see below), whose sum is σ = 284608637280. Its totient is φ = 50597090304.

The previous prime is 125438620663. The next prime is 125438620693. The reversal of 125438620664 is 466026834521.

125438620664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125438620663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65880677 + ... + 65882580.

It is an arithmetic number, because the mean of its divisors is an integer number (8894019915).

Almost surely, 2^125438620664 is an apocalyptic number.

125438620664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

125438620664 is an abundant number, since it is smaller than the sum of its proper divisors (159170016616).

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

125438620664 is a wasteful number, since it uses less digits than its factorization.

125438620664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131763287 (or 131763283 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 125438620664 in words is "one hundred twenty-five billion, four hundred thirty-eight million, six hundred twenty thousand, six hundred sixty-four".