12287972160 has 140 divisors (see below), whose sum is σ = 43710570948. Its totient is φ = 3276785664.

The previous prime is 12287972089. The next prime is 12287972189. The reversal of 12287972160 is 6127978221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9433848384 + 2854123776 = 97128^2 + 53424^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 211117 + ... + 262956.

Almost surely, 2^12287972160 is an apocalyptic number.

12287972160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12287972160 is an abundant number, since it is smaller than the sum of its proper divisors (31422598788).

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

12287972160 is an equidigital number, since it uses as much as digits as its factorization.

12287972160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474102 (or 474083 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 12287972160 in words is "twelve billion, two hundred eighty-seven million, nine hundred seventy-two thousand, one hundred sixty".