125699885136 has 60 divisors (see below), whose sum is σ = 402040112032. Its totient is φ = 35914252608.

The previous prime is 125699885083. The next prime is 125699885153. The reversal of 125699885136 is 631588996521.

125699885136 is a `hidden beast` number, since 1 + 25 + 6 + 9 + 98 + 8 + 513 + 6 = 666.

It is a super-2 number, since 2×125699885136² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62350126 + ... + 62352141.

Almost surely, 2^125699885136 is an apocalyptic number.

125699885136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125699885136 is an abundant number, since it is smaller than the sum of its proper divisors (276340226896).

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

125699885136 is a wasteful number, since it uses less digits than its factorization.

125699885136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124702288 (or 124702279 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The spelling of 125699885136 in words is "one hundred twenty-five billion, six hundred ninety-nine million, eight hundred eighty-five thousand, one hundred thirty-six".