12069555660 has 240 divisors, whose sum is σ = 38760210720. Its totient is φ = 3143024640.

The previous prime is 12069555653. The next prime is 12069555697. The reversal of 12069555660 is 6655596021.

12069555660 is a `hidden beast` number, since 1 + 2 + 0 + 6 + 95 + 556 + 6 + 0 = 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 79 ways as a sum of consecutive naturals, for example, 18828940 + ... + 18829580.

It is an arithmetic number, because the mean of its divisors is an integer number (161500878).

Almost surely, 2^12069555660 is an apocalyptic number.

12069555660 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 12069555660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19380105360).

12069555660 is an abundant number, since it is smaller than the sum of its proper divisors (26690655060).

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

12069555660 is a wasteful number, since it uses less digits than its factorization.

12069555660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The spelling of 12069555660 in words is "twelve billion, sixty-nine million, five hundred fifty-five thousand, six hundred sixty".