646324222462 has 16 divisors (see below), whose sum is σ = 991703992320. Its totient is φ = 315832183128.

The previous prime is 646324222459. The next prime is 646324222471. The reversal of 646324222462 is 264222423646.

It is a super-2 number, since 2×646324222462² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 18972412 + ... + 19006447.

It is an arithmetic number, because the mean of its divisors is an integer number (61981499520).

Almost surely, 2^646324222462 is an apocalyptic number.

646324222462 is a deficient number, since it is larger than the sum of its proper divisors (345379769858).

646324222462 is a wasteful number, since it uses less digits than its factorization.

646324222462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37979055.

The product of its digits is 1327104, while the sum is 43.

The spelling of 646324222462 in words is "six hundred forty-six billion, three hundred twenty-four million, two hundred twenty-two thousand, four hundred sixty-two".