12500605020 has 96 divisors (see below), whose sum is σ = 36866188800. Its totient is φ = 3156136704.

The previous prime is 12500605009. The next prime is 12500605021. The reversal of 12500605020 is 2050600521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500605021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3542497 + ... + 3546023.

It is an arithmetic number, because the mean of its divisors is an integer number (384022800).

Almost surely, 2^12500605020 is an apocalyptic number.

12500605020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12500605020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18433094400).

12500605020 is an abundant number, since it is smaller than the sum of its proper divisors (24365583780).

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

12500605020 is a wasteful number, since it uses less digits than its factorization.

12500605020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667 (or 6665 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The spelling of 12500605020 in words is "twelve billion, five hundred million, six hundred five thousand, twenty".