12660375380 has 24 divisors (see below), whose sum is σ = 26588943360. Its totient is φ = 5063739680.

The previous prime is 12660375373. The next prime is 12660375389. The reversal of 12660375380 is 8357306621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12660375389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397445 + ... + 428115.

It is an arithmetic number, because the mean of its divisors is an integer number (1107872640).

Almost surely, 2^12660375380 is an apocalyptic number.

12660375380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12660375380 is an abundant number, since it is smaller than the sum of its proper divisors (13928567980).

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

12660375380 is a wasteful number, since it uses less digits than its factorization.

12660375380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51319 (or 51317 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 12660375380 in words is "twelve billion, six hundred sixty million, three hundred seventy-five thousand, three hundred eighty".