816653290 has 16 divisors (see below), whose sum is σ = 1473159168. Its totient is φ = 325953936.

The previous prime is 816653281. The next prime is 816653329. The reversal of 816653290 is 92356618.

816653290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 83562 + ... + 92821.

It is an arithmetic number, because the mean of its divisors is an integer number (92072448).

Almost surely, 2^816653290 is an apocalyptic number.

816653290 is a deficient number, since it is larger than the sum of its proper divisors (656505878).

816653290 is a wasteful number, since it uses less digits than its factorization.

816653290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176853.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 816653290 is about 28577.1462885992. The cubic root of 816653290 is about 934.7150570613.

The spelling of 816653290 in words is "eight hundred sixteen million, six hundred fifty-three thousand, two hundred ninety".