12684116880 has 120 divisors (see below), whose sum is σ = 43401349368. Its totient is φ = 3318601728.

The previous prime is 12684116833. The next prime is 12684116983. The reversal of 12684116880 is 8861148621.

It can be written as a sum of positive squares in 4 ways, for example, as 884943504 + 11799173376 = 29748^2 + 108624^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128037 + ... + 204356.

Almost surely, 2^12684116880 is an apocalyptic number.

12684116880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12684116880 is an abundant number, since it is smaller than the sum of its proper divisors (30717232488).

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

12684116880 is a wasteful number, since it uses less digits than its factorization.

12684116880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332465 (or 332456 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 12684116880 in words is "twelve billion, six hundred eighty-four million, one hundred sixteen thousand, eight hundred eighty".