12021680466 has 48 divisors (see below), whose sum is σ = 26159328000. Its totient is φ = 3989984544.

The previous prime is 12021680449. The next prime is 12021680501. The reversal of 12021680466 is 66408612021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021680466.

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, 4714960 + ... + 4717508.

It is an arithmetic number, because the mean of its divisors is an integer number (544986000).

Almost surely, 2^12021680466 is an apocalyptic number.

12021680466 is an abundant number, since it is smaller than the sum of its proper divisors (14137647534).

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

12021680466 is a wasteful number, since it uses less digits than its factorization.

12021680466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 12021680466 in words is "twelve billion, twenty-one million, six hundred eighty thousand, four hundred sixty-six".