12129316960 has 24 divisors (see below), whose sum is σ = 28655511696. Its totient is φ = 4851726720.

The previous prime is 12129316943. The next prime is 12129317003. The reversal of 12129316960 is 6961392121.

It is a super-2 number, since 2×12129316960² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 37903956 + ... + 37904275.

It is an arithmetic number, because the mean of its divisors is an integer number (1193979654).

Almost surely, 2^12129316960 is an apocalyptic number.

12129316960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12129316960 is an abundant number, since it is smaller than the sum of its proper divisors (16526194736).

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

12129316960 is an equidigital number, since it uses as much as digits as its factorization.

12129316960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75808246 (or 75808238 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 12129316960 in words is "twelve billion, one hundred twenty-nine million, three hundred sixteen thousand, nine hundred sixty".