663151431930 has 96 divisors (see below), whose sum is σ = 1724199027264. Its totient is φ = 163162441728.

The previous prime is 663151431907. The next prime is 663151431931. The reversal of 663151431930 is 39134151366.

It is not an unprimeable number, because it can be changed into a prime (663151431931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11464842 + ... + 11522538.

It is an arithmetic number, because the mean of its divisors is an integer number (17960406534).

Almost surely, 2^663151431930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663151431930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862099513632).

663151431930 is an abundant number, since it is smaller than the sum of its proper divisors (1061047595334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663151431930 is a wasteful number, since it uses less digits than its factorization.

663151431930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60000 (or 59987 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 663151431930 in words is "six hundred sixty-three billion, one hundred fifty-one million, four hundred thirty-one thousand, nine hundred thirty".