12660156020 has 48 divisors (see below), whose sum is σ = 28167870528. Its totient is φ = 4763189760.

The previous prime is 12660156011. The next prime is 12660156031. The reversal of 12660156020 is 2065106621.

It is a congruent number.

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, 575015 + ... + 596625.

It is an arithmetic number, because the mean of its divisors is an integer number (586830636).

Almost surely, 2^12660156020 is an apocalyptic number.

12660156020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12660156020 is an abundant number, since it is smaller than the sum of its proper divisors (15507714508).

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

12660156020 is a wasteful number, since it uses less digits than its factorization.

12660156020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23360 (or 23358 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 12660156020 in words is "twelve billion, six hundred sixty million, one hundred fifty-six thousand, twenty".