663319940291 has 8 divisors (see below), whose sum is σ = 665376472704. Its totient is φ = 661266547200.

The previous prime is 663319940287. The next prime is 663319940303. The reversal of 663319940291 is 192049913366.

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 663319940291 - 2² = 663319940287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663319940191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361235 + ... + 1207116.

It is an arithmetic number, because the mean of its divisors is an integer number (83172059088).

Almost surely, 2^663319940291 is an apocalyptic number.

663319940291 is a deficient number, since it is larger than the sum of its proper divisors (2056532413).

663319940291 is a wasteful number, since it uses less digits than its factorization.

663319940291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569661.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 663319940291 in words is "six hundred sixty-three billion, three hundred nineteen million, nine hundred forty thousand, two hundred ninety-one".