12265521960 has 64 divisors (see below), whose sum is σ = 37175947200. Its totient is φ = 3237083136.

The previous prime is 12265521943. The next prime is 12265521973. The reversal of 12265521960 is 6912556221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515230 + ... + 538509.

It is an arithmetic number, because the mean of its divisors is an integer number (580874175).

Almost surely, 2^12265521960 is an apocalyptic number.

12265521960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12265521960 is an abundant number, since it is smaller than the sum of its proper divisors (24910425240).

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

12265521960 is a wasteful number, since it uses less digits than its factorization.

12265521960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053850 (or 1053846 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 12265521960 in words is "twelve billion, two hundred sixty-five million, five hundred twenty-one thousand, nine hundred sixty".