663534156284 has 12 divisors (see below), whose sum is σ = 1161213417000. Its totient is φ = 331758894288.

The previous prime is 663534156283. The next prime is 663534156301. The reversal of 663534156284 is 482651435366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663534156281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861694 + ... + 2189285.

It is an arithmetic number, because the mean of its divisors is an integer number (96767784750).

Almost surely, 2^663534156284 is an apocalyptic number.

It is an amenable number.

663534156284 is a deficient number, since it is larger than the sum of its proper divisors (497679260716).

663534156284 is a wasteful number, since it uses less digits than its factorization.

663534156284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091932 (or 4091930 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 53.

The spelling of 663534156284 in words is "six hundred sixty-three billion, five hundred thirty-four million, one hundred fifty-six thousand, two hundred eighty-four".