12520610540 has 12 divisors (see below), whose sum is σ = 26293282176. Its totient is φ = 5008244208.

The previous prime is 12520610503. The next prime is 12520610569. The reversal of 12520610540 is 4501602521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313015244 + ... + 313015283.

It is an arithmetic number, because the mean of its divisors is an integer number (2191106848).

Almost surely, 2^12520610540 is an apocalyptic number.

12520610540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12520610540 is an abundant number, since it is smaller than the sum of its proper divisors (13772671636).

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

12520610540 is a wasteful number, since it uses less digits than its factorization.

12520610540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626030536 (or 626030534 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 12520610540 in words is "twelve billion, five hundred twenty million, six hundred ten thousand, five hundred forty".