20744316766 has 16 divisors (see below), whose sum is σ = 31298803200. Its totient is φ = 10311510168.

The previous prime is 20744316737. The next prime is 20744316773. The reversal of 20744316766 is 66761344702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298125 + ... + 361063.

It is an arithmetic number, because the mean of its divisors is an integer number (1956175200).

Almost surely, 2^20744316766 is an apocalyptic number.

20744316766 is a deficient number, since it is larger than the sum of its proper divisors (10554486434).

20744316766 is a wasteful number, since it uses less digits than its factorization.

20744316766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63903.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 20744316766 in words is "twenty billion, seven hundred forty-four million, three hundred sixteen thousand, seven hundred sixty-six".