623016665 has 8 divisors (see below), whose sum is σ = 749158080. Its totient is φ = 497387952.

The previous prime is 623016649. The next prime is 623016683. The reversal of 623016665 is 566610326.

623016665 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 a cyclic number.

It is not a de Polignac number, because 623016665 - 2⁴ = 623016649 is a prime.

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, 125495 + ... + 130364.

It is an arithmetic number, because the mean of its divisors is an integer number (93644760).

Almost surely, 2^623016665 is an apocalyptic number.

It is an amenable number.

623016665 is a deficient number, since it is larger than the sum of its proper divisors (126141415).

623016665 is a wasteful number, since it uses less digits than its factorization.

623016665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256351.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 623016665 is about 24960.3017810282. The cubic root of 623016665 is about 854.0826269674.

The spelling of 623016665 in words is "six hundred twenty-three million, sixteen thousand, six hundred sixty-five".