663610664414212 has 24 divisors (see below), whose sum is σ = 1172700803019200. Its totient is φ = 328553881144416.

The previous prime is 663610664414183. The next prime is 663610664414279. The reversal of 663610664414212 is 212414466016366.

It is a super-2 number, since 2×663610664414212² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 663610664414212.

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, 69115287 + ... + 78129022.

Almost surely, 2^{663610664414212} is an apocalyptic number.

It is an amenable number.

663610664414212 is a deficient number, since it is larger than the sum of its proper divisors (509090138604988).

663610664414212 is a wasteful number, since it uses less digits than its factorization.

663610664414212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147255355 (or 147255353 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 52.

The spelling of 663610664414212 in words is "six hundred sixty-three trillion, six hundred ten billion, six hundred sixty-four million, four hundred fourteen thousand, two hundred twelve".