663142388550236 has 48 divisors (see below), whose sum is σ = 1330293068664000. Its totient is φ = 283345215948288.

The previous prime is 663142388550227. The next prime is 663142388550247. The reversal of 663142388550236 is 632055883241366.

It is a happy number.

It is a super-2 number, since 2×663142388550236² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57207320 + ... + 67815648.

It is an arithmetic number, because the mean of its divisors is an integer number (27714438930500).

Almost surely, 2^{663142388550236} is an apocalyptic number.

It is an amenable number.

663142388550236 is an abundant number, since it is smaller than the sum of its proper divisors (667150680113764).

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

663142388550236 is a wasteful number, since it uses less digits than its factorization.

663142388550236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615086 (or 10615084 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 62.

The spelling of 663142388550236 in words is "six hundred sixty-three trillion, one hundred forty-two billion, three hundred eighty-eight million, five hundred fifty thousand, two hundred thirty-six".