20696042999823 has 8 divisors (see below), whose sum is σ = 27594961263408. Its totient is φ = 13797243368064.

The previous prime is 20696042999809. The next prime is 20696042999839. The reversal of 20696042999823 is 32899924069602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20696042999823 - 2⁹ = 20696042999311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20696042999923) 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 7 ways as a sum of consecutive naturals, for example, 29250090 + ... + 29949287.

It is an arithmetic number, because the mean of its divisors is an integer number (3449370157926).

Almost surely, 2^{20696042999823} is an apocalyptic number.

20696042999823 is a deficient number, since it is larger than the sum of its proper divisors (6898918263585).

20696042999823 is a wasteful number, since it uses less digits than its factorization.

20696042999823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59315913.

The product of its (nonzero) digits is 181398528, while the sum is 69.

The spelling of 20696042999823 in words is "twenty trillion, six hundred ninety-six billion, forty-two million, nine hundred ninety-nine thousand, eight hundred twenty-three".