12683571660 has 144 divisors (see below), whose sum is σ = 40305283200. Its totient is φ = 3224212992.

The previous prime is 12683571629. The next prime is 12683571673. The reversal of 12683571660 is 6617538621.

12683571660 is a `hidden beast` number, since 12 + 6 + 8 + 3 + 571 + 6 + 60 = 666.

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 47 ways as a sum of consecutive naturals, for example, 397002 + ... + 427758.

It is an arithmetic number, because the mean of its divisors is an integer number (279897800).

Almost surely, 2^12683571660 is an apocalyptic number.

12683571660 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 12683571660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20152641600).

12683571660 is an abundant number, since it is smaller than the sum of its proper divisors (27621711540).

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

12683571660 is a wasteful number, since it uses less digits than its factorization.

12683571660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30880 (or 30875 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 12683571660 in words is "twelve billion, six hundred eighty-three million, five hundred seventy-one thousand, six hundred sixty".