20125599587688 has 64 divisors (see below), whose sum is σ = 57503013557760. Its totient is φ = 5750041265856.

The previous prime is 20125599587677. The next prime is 20125599587689. The reversal of 20125599587688 is 88678599552102.

It is not an unprimeable number, because it can be changed into a prime (20125599587689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6221631 + ... + 8885937.

It is an arithmetic number, because the mean of its divisors is an integer number (898484586840).

Almost surely, 2^{20125599587688} is an apocalyptic number.

20125599587688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20125599587688 is an abundant number, since it is smaller than the sum of its proper divisors (37377413970072).

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

20125599587688 is a wasteful number, since it uses less digits than its factorization.

20125599587688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709286 (or 2709282 counting only the distinct ones).

The product of its (nonzero) digits is 870912000, while the sum is 75.

The spelling of 20125599587688 in words is "twenty trillion, one hundred twenty-five billion, five hundred ninety-nine million, five hundred eighty-seven thousand, six hundred eighty-eight".