321868145466 has 24 divisors (see below), whose sum is σ = 797006836704. Its totient is φ = 91962327240.

The previous prime is 321868145441. The next prime is 321868145503. The reversal of 321868145466 is 664541868123.

321868145466 is a `hidden beast` number, since 3 + 2 + 1 + 86 + 8 + 14 + 546 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1277254420 + ... + 1277254671.

It is an arithmetic number, because the mean of its divisors is an integer number (33208618196).

Almost surely, 2^321868145466 is an apocalyptic number.

321868145466 is an abundant number, since it is smaller than the sum of its proper divisors (475138691238).

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

321868145466 is a wasteful number, since it uses less digits than its factorization.

321868145466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554509106 (or 2554509103 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 321868145466 in words is "three hundred twenty-one billion, eight hundred sixty-eight million, one hundred forty-five thousand, four hundred sixty-six".