20366722694 has 32 divisors (see below), whose sum is σ = 31473459360. Its totient is φ = 9878572800.

The previous prime is 20366722693. The next prime is 20366722741. The reversal of 20366722694 is 49622766302.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366722693) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19051592 + ... + 19052660.

It is an arithmetic number, because the mean of its divisors is an integer number (983545605).

Almost surely, 2^20366722694 is an apocalyptic number.

20366722694 is a deficient number, since it is larger than the sum of its proper divisors (11106736666).

20366722694 is a wasteful number, since it uses less digits than its factorization.

20366722694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 20366722694 in words is "twenty billion, three hundred sixty-six million, seven hundred twenty-two thousand, six hundred ninety-four".