216431600466 has 32 divisors (see below), whose sum is σ = 437922920448. Its totient is φ = 71303711120.

The previous prime is 216431600431. The next prime is 216431600479. The reversal of 216431600466 is 664006134612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114390 + ... + 667793.

It is an arithmetic number, because the mean of its divisors is an integer number (13685091264).

Almost surely, 2^216431600466 is an apocalyptic number.

216431600466 is an abundant number, since it is smaller than the sum of its proper divisors (221491319982).

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

216431600466 is a wasteful number, since it uses less digits than its factorization.

216431600466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782726.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 216431600466 in words is "two hundred sixteen billion, four hundred thirty-one million, six hundred thousand, four hundred sixty-six".