12615256260 has 36 divisors (see below), whose sum is σ = 38266277868. Its totient is φ = 3364068288.

The previous prime is 12615256187. The next prime is 12615256289. The reversal of 12615256260 is 6265251621.

12615256260 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 5 + 25 + 626 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8778940416 + 3836315844 = 93696^2 + 61938^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35042199 + ... + 35042558.

It is an arithmetic number, because the mean of its divisors is an integer number (1062952163).

Almost surely, 2^12615256260 is an apocalyptic number.

12615256260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12615256260 is an abundant number, since it is smaller than the sum of its proper divisors (25651021608).

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

12615256260 is a wasteful number, since it uses less digits than its factorization.

12615256260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70084772 (or 70084767 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12615256260 in words is "twelve billion, six hundred fifteen million, two hundred fifty-six thousand, two hundred sixty".