663216747507 has 8 divisors (see below), whose sum is σ = 982543329680. Its totient is φ = 442144498320.

The previous prime is 663216747491. The next prime is 663216747559. The reversal of 663216747507 is 705747612366.

It is a happy number.

663216747507 is a `hidden beast` number, since 6 + 6 + 3 + 2 + 167 + 475 + 0 + 7 = 666.

It is not a de Polignac number, because 663216747507 - 2⁴ = 663216747491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663216747577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12281791594 + ... + 12281791647.

It is an arithmetic number, because the mean of its divisors is an integer number (122817916210).

Almost surely, 2^663216747507 is an apocalyptic number.

663216747507 is a deficient number, since it is larger than the sum of its proper divisors (319326582173).

663216747507 is a wasteful number, since it uses less digits than its factorization.

663216747507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24563583250 (or 24563583244 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 663216747507 in words is "six hundred sixty-three billion, two hundred sixteen million, seven hundred forty-seven thousand, five hundred seven".