668797365 has 8 divisors (see below), whose sum is σ = 1070075808. Its totient is φ = 356691920.

The previous prime is 668797343. The next prime is 668797373. The reversal of 668797365 is 563797866.

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

It is not a de Polignac number, because 668797365 - 2⁸ = 668797109 is a prime.

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, 22293231 + ... + 22293260.

It is an arithmetic number, because the mean of its divisors is an integer number (133759476).

Almost surely, 2^668797365 is an apocalyptic number.

It is an amenable number.

668797365 is a deficient number, since it is larger than the sum of its proper divisors (401278443).

668797365 is a wasteful number, since it uses less digits than its factorization.

668797365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44586499.

The product of its digits is 11430720, while the sum is 57.

The square root of 668797365 is about 25861.1168552327. The cubic root of 668797365 is about 874.5101432265.

The spelling of 668797365 in words is "six hundred sixty-eight million, seven hundred ninety-seven thousand, three hundred sixty-five".