663520075030 has 16 divisors (see below), whose sum is σ = 1195682640480. Its totient is φ = 265108806592.

The previous prime is 663520075027. The next prime is 663520075039. The reversal of 663520075030 is 30570025366.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663520075039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37393615 + ... + 37411354.

It is an arithmetic number, because the mean of its divisors is an integer number (74730165030).

Almost surely, 2^663520075030 is an apocalyptic number.

663520075030 is a deficient number, since it is larger than the sum of its proper divisors (532162565450).

663520075030 is a wasteful number, since it uses less digits than its factorization.

663520075030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74805863.

The product of its (nonzero) digits is 113400, while the sum is 37.

The spelling of 663520075030 in words is "six hundred sixty-three billion, five hundred twenty million, seventy-five thousand, thirty".