663431134366 has 96 divisors (see below), whose sum is σ = 1344067105536. Its totient is φ = 238492800000.

The previous prime is 663431134357. The next prime is 663431134381.

663431134366 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84606606 + ... + 84614446.

It is an arithmetic number, because the mean of its divisors is an integer number (14000699016).

Almost surely, 2^663431134366 is an apocalyptic number.

663431134366 is an abundant number, since it is smaller than the sum of its proper divisors (680635971170).

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

663431134366 is a wasteful number, since it uses less digits than its factorization.

663431134366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11138 (or 11125 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 46.

It can be divided in two parts, 663431 and 134366, that added together give a palindrome (797797).

The spelling of 663431134366 in words is "six hundred sixty-three billion, four hundred thirty-one million, one hundred thirty-four thousand, three hundred sixty-six".