663733903146 has 16 divisors (see below), whose sum is σ = 1336376988000. Its totient is φ = 219759770768.

The previous prime is 663733903127. The next prime is 663733903253. The reversal of 663733903146 is 641309337366.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371214936 + ... + 371216723.

It is an arithmetic number, because the mean of its divisors is an integer number (83523561750).

Almost surely, 2^663733903146 is an apocalyptic number.

663733903146 is an abundant number, since it is smaller than the sum of its proper divisors (672643084854).

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

663733903146 is a wasteful number, since it uses less digits than its factorization.

663733903146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742431813.

The product of its (nonzero) digits is 4408992, while the sum is 51.

The spelling of 663733903146 in words is "six hundred sixty-three billion, seven hundred thirty-three million, nine hundred three thousand, one hundred forty-six".