12561080760500 has 96 divisors (see below), whose sum is σ = 27474669331200. Its totient is φ = 5016879504000.

The previous prime is 12561080760497. The next prime is 12561080760523. The reversal of 12561080760500 is 506708016521.

12561080760500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1169664131 + ... + 1169674869.

It is an arithmetic number, because the mean of its divisors is an integer number (286194472200).

Almost surely, 2^{12561080760500} is an apocalyptic number.

12561080760500 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 12561080760500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13737334665600).

12561080760500 is an abundant number, since it is smaller than the sum of its proper divisors (14913588570700).

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

12561080760500 is a wasteful number, since it uses less digits than its factorization.

12561080760500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14058 (or 14046 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 12561080760500 in words is "twelve trillion, five hundred sixty-one billion, eighty million, seven hundred sixty thousand, five hundred".