663361059 has 4 divisors (see below), whose sum is σ = 884481416. Its totient is φ = 442240704.

The previous prime is 663360989. The next prime is 663361073. The reversal of 663361059 is 950163366.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 663361059 - 2⁷ = 663360931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663361759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110560174 + ... + 110560179.

It is an arithmetic number, because the mean of its divisors is an integer number (221120354).

Almost surely, 2^663361059 is an apocalyptic number.

663361059 is a deficient number, since it is larger than the sum of its proper divisors (221120357).

663361059 is a wasteful number, since it uses less digits than its factorization.

663361059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221120356.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 663361059 is about 25755.7966096955. The cubic root of 663361059 is about 872.1342145872.

The spelling of 663361059 in words is "six hundred sixty-three million, three hundred sixty-one thousand, fifty-nine".