21466280245068 has 24 divisors (see below), whose sum is σ = 55653319154160. Its totient is φ = 7155426748320.

The previous prime is 21466280245031. The next prime is 21466280245097. The reversal of 21466280245068 is 86054208266412.

21466280245068 is a `hidden beast` number, since 2 + 1 + 4 + 6 + 628 + 0 + 2 + 4 + 5 + 0 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99380926953 + ... + 99380927168.

It is an arithmetic number, because the mean of its divisors is an integer number (2318888298090).

Almost surely, 2^{21466280245068} is an apocalyptic number.

It is an amenable number.

21466280245068 is an abundant number, since it is smaller than the sum of its proper divisors (34187038909092).

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

21466280245068 is a wasteful number, since it uses less digits than its factorization.

21466280245068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198761854134 (or 198761854126 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 21466280245068 in words is "twenty-one trillion, four hundred sixty-six billion, two hundred eighty million, two hundred forty-five thousand, sixty-eight".