816818662 has 16 divisors (see below), whose sum is σ = 1338571584. Its totient is φ = 370737000.

The previous prime is 816818657. The next prime is 816818671. The reversal of 816818662 is 266818618.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11664 + ... + 42067.

It is an arithmetic number, because the mean of its divisors is an integer number (83660724).

Almost surely, 2^816818662 is an apocalyptic number.

816818662 is a deficient number, since it is larger than the sum of its proper divisors (521752922).

816818662 is a wasteful number, since it uses less digits than its factorization.

816818662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54435.

The product of its digits is 221184, while the sum is 46.

The square root of 816818662 is about 28580.0395731007. The cubic root of 816818662 is about 934.7781459582.

The spelling of 816818662 in words is "eight hundred sixteen million, eight hundred eighteen thousand, six hundred sixty-two".