663222211134064 has 160 divisors (see below), whose sum is σ = 1352705491307520. Its totient is φ = 314582920544256.

The previous prime is 663222211134047. The next prime is 663222211134079. The reversal of 663222211134064 is 460431112222366.

It is a self number, because there is not a number n which added to its sum of digits gives 663222211134064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27999406029 + ... + 27999429715.

It is an arithmetic number, because the mean of its divisors is an integer number (8454409320672).

Almost surely, 2^{663222211134064} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663222211134064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676352745653760).

663222211134064 is an abundant number, since it is smaller than the sum of its proper divisors (689483280173456).

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

663222211134064 is a wasteful number, since it uses less digits than its factorization.

663222211134064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27767 (or 27761 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 663222211134064 in words is "six hundred sixty-three trillion, two hundred twenty-two billion, two hundred eleven million, one hundred thirty-four thousand, sixty-four".