125613165552 has 40 divisors (see below), whose sum is σ = 370857918336. Its totient is φ = 35889475776.

The previous prime is 125613165533. The next prime is 125613165593. The reversal of 125613165552 is 255561316521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 186924018 + ... + 186924689.

Almost surely, 2^125613165552 is an apocalyptic number.

125613165552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125613165552 is an abundant number, since it is smaller than the sum of its proper divisors (245244752784).

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

125613165552 is a wasteful number, since it uses less digits than its factorization.

125613165552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373848725 (or 373848719 counting only the distinct ones).

The product of its digits is 270000, while the sum is 42.

The spelling of 125613165552 in words is "one hundred twenty-five billion, six hundred thirteen million, one hundred sixty-five thousand, five hundred fifty-two".