816655955 has 8 divisors (see below), whose sum is σ = 980141904. Its totient is φ = 653221600.

The previous prime is 816655933. The next prime is 816655981. The reversal of 816655955 is 559556618.

816655955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 816655955 - 2¹⁶ = 816590419 is a prime.

It is a Duffinian 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, 48545 + ... + 63165.

It is an arithmetic number, because the mean of its divisors is an integer number (122517738).

Almost surely, 2^816655955 is an apocalyptic number.

816655955 is a deficient number, since it is larger than the sum of its proper divisors (163485949).

816655955 is a wasteful number, since it uses less digits than its factorization.

816655955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25797.

The product of its digits is 1620000, while the sum is 50.

The square root of 816655955 is about 28577.1929167299. The cubic root of 816655955 is about 934.7160738179.

The spelling of 816655955 in words is "eight hundred sixteen million, six hundred fifty-five thousand, nine hundred fifty-five".