20369244959 has 16 divisors (see below), whose sum is σ = 23446405632. Its totient is φ = 17334127008.

The previous prime is 20369244949. The next prime is 20369244983. The reversal of 20369244959 is 95944296302.

It is a cyclic number.

It is not a de Polignac number, because 20369244959 - 2⁸ = 20369244703 is a prime.

It is a super-2 number, since 2×20369244959² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20369244959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20369244949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147022 + ... + 1164644.

It is an arithmetic number, because the mean of its divisors is an integer number (1465400352).

Almost surely, 2^20369244959 is an apocalyptic number.

20369244959 is a deficient number, since it is larger than the sum of its proper divisors (3077160673).

20369244959 is a wasteful number, since it uses less digits than its factorization.

20369244959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18806.

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 20369244959 in words is "twenty billion, three hundred sixty-nine million, two hundred forty-four thousand, nine hundred fifty-nine".