20337664772433 has 4 divisors (see below), whose sum is σ = 27116886363248. Its totient is φ = 13558443181620.

The previous prime is 20337664772423. The next prime is 20337664772443. The reversal of 20337664772433 is 33427746673302.

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 an interprime number because it is at equal distance from previous prime (20337664772423) and next prime (20337664772443).

It is not a de Polignac number, because 20337664772433 - 2⁴ = 20337664772417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20337664772423) 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 3 ways as a sum of consecutive naturals, for example, 3389610795403 + ... + 3389610795408.

It is an arithmetic number, because the mean of its divisors is an integer number (6779221590812).

Almost surely, 2^{20337664772433} is an apocalyptic number.

It is an amenable number.

20337664772433 is a deficient number, since it is larger than the sum of its proper divisors (6779221590815).

20337664772433 is an equidigital number, since it uses as much as digits as its factorization.

20337664772433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779221590814.

The product of its (nonzero) digits is 64012032, while the sum is 57.

The spelling of 20337664772433 in words is "twenty trillion, three hundred thirty-seven billion, six hundred sixty-four million, seven hundred seventy-two thousand, four hundred thirty-three".