663115345 has 32 divisors (see below), whose sum is σ = 868734720. Its totient is φ = 483932160.

The previous prime is 663115331. The next prime is 663115357. The reversal of 663115345 is 543511366.

It is not a de Polignac number, because 663115345 - 2⁹ = 663114833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 663115345.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623284 + ... + 624346.

It is an arithmetic number, because the mean of its divisors is an integer number (27147960).

Almost surely, 2^663115345 is an apocalyptic number.

It is an amenable number.

663115345 is a deficient number, since it is larger than the sum of its proper divisors (205619375).

663115345 is a wasteful number, since it uses less digits than its factorization.

663115345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305.

The product of its digits is 32400, while the sum is 34.

The square root of 663115345 is about 25751.0260960607. The cubic root of 663115345 is about 872.0265195656.

The spelling of 663115345 in words is "six hundred sixty-three million, one hundred fifteen thousand, three hundred forty-five".