12637715120 has 80 divisors (see below), whose sum is σ = 30600720000. Its totient is φ = 4847883264.

The previous prime is 12637715087. The next prime is 12637715137. The reversal of 12637715120 is 2151773621.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12637715120² (a number of 21 digits) contains 22 as substring.

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, 327401 + ... + 363959.

It is an arithmetic number, because the mean of its divisors is an integer number (382509000).

Almost surely, 2^12637715120 is an apocalyptic number.

12637715120 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 12637715120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15300360000).

12637715120 is an abundant number, since it is smaller than the sum of its proper divisors (17963004880).

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

12637715120 is a wasteful number, since it uses less digits than its factorization.

12637715120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36750 (or 36744 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The spelling of 12637715120 in words is "twelve billion, six hundred thirty-seven million, seven hundred fifteen thousand, one hundred twenty".