663145105022 has 4 divisors (see below), whose sum is σ = 994717657536. Its totient is φ = 331572552510.

The previous prime is 663145105001. The next prime is 663145105027. The reversal of 663145105022 is 220501541366.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×663145105022² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663145105027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165786276254 + ... + 165786276257.

It is an arithmetic number, because the mean of its divisors is an integer number (248679414384).

Almost surely, 2^663145105022 is an apocalyptic number.

663145105022 is a deficient number, since it is larger than the sum of its proper divisors (331572552514).

663145105022 is a wasteful number, since it uses less digits than its factorization.

663145105022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331572552513.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 663145105022 its reverse (220501541366), we get a palindrome (883646646388).

The spelling of 663145105022 in words is "six hundred sixty-three billion, one hundred forty-five million, one hundred five thousand, twenty-two".