20322450199597 has 12 divisors (see below), whose sum is σ = 25149676326240. Its totient is φ = 16079301255888.

The previous prime is 20322450199573. The next prime is 20322450199613. The reversal of 20322450199597 is 79599105422302.

It is not a de Polignac number, because 20322450199597 - 2²³ = 20322441810989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322450199097) 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 11 ways as a sum of consecutive naturals, for example, 8589369147 + ... + 8589371512.

It is an arithmetic number, because the mean of its divisors is an integer number (2095806360520).

Almost surely, 2^{20322450199597} is an apocalyptic number.

It is an amenable number.

20322450199597 is a deficient number, since it is larger than the sum of its proper divisors (4827226126643).

20322450199597 is a wasteful number, since it uses less digits than its factorization.

20322450199597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17178740692 (or 17178740679 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 20322450199597 in words is "twenty trillion, three hundred twenty-two billion, four hundred fifty million, one hundred ninety-nine thousand, five hundred ninety-seven".