20322336961 has 4 divisors (see below), whose sum is σ = 20322669312. Its totient is φ = 20322004612.

The previous prime is 20322336959. The next prime is 20322336973. The reversal of 20322336961 is 16963322302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20322336961 - 2¹ = 20322336959 is a prime.

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 20322336961.

It is not an unprimeable number, because it can be changed into a prime (20322336761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45001 + ... + 206566.

It is an arithmetic number, because the mean of its divisors is an integer number (5080667328).

Almost surely, 2^20322336961 is an apocalyptic number.

It is an amenable number.

20322336961 is a deficient number, since it is larger than the sum of its proper divisors (332351).

20322336961 is an equidigital number, since it uses as much as digits as its factorization.

20322336961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332350.

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 20322336961 in words is "twenty billion, three hundred twenty-two million, three hundred thirty-six thousand, nine hundred sixty-one".