422684620164 has 135 divisors (see below), whose sum is σ = 1166812668021. Its totient is φ = 133409138400.

The previous prime is 422684620109. The next prime is 422684620181. The reversal of 422684620164 is 461026486224.

The square root of 422684620164 is 650142.

It is a perfect power (a square), and thus also a powerful number.

422684620164 is a `hidden beast` number, since 4 + 2 + 2 + 6 + 8 + 4 + 620 + 16 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35253066564 + 387431553600 = 187758^2 + 622440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 222347614 + ... + 222349514.

Almost surely, 2^422684620164 is an apocalyptic number.

422684620164 is the 650142-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422684620164

422684620164 is an abundant number, since it is smaller than the sum of its proper divisors (744128047857).

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

422684620164 is an equidigital number, since it uses as much as digits as its factorization.

422684620164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The spelling of 422684620164 in words is "four hundred twenty-two billion, six hundred eighty-four million, six hundred twenty thousand, one hundred sixty-four".