20125526640120 has 128 divisors (see below), whose sum is σ = 73183733280000. Its totient is φ = 4878915546240.

The previous prime is 20125526640119. The next prime is 20125526640133. The reversal of 20125526640120 is 2104662552102.

20125526640120 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 5 + 5 + 2 + 6 + 640 + 1 + 2 + 0 = 666.

It is a super-2 number, since 2×20125526640120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 847022070 + ... + 847045829.

It is an arithmetic number, because the mean of its divisors is an integer number (571747916250).

Almost surely, 2^{20125526640120} is an apocalyptic number.

20125526640120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20125526640120 is an abundant number, since it is smaller than the sum of its proper divisors (53058206639880).

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

20125526640120 is a wasteful number, since it uses less digits than its factorization.

20125526640120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694067930 (or 1694067920 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 20125526640120 in words is "twenty trillion, one hundred twenty-five billion, five hundred twenty-six million, six hundred forty thousand, one hundred twenty".