20423445404199 has 8 divisors (see below), whose sum is σ = 27233609525232. Its totient is φ = 13614455776320.

The previous prime is 20423445404189. The next prime is 20423445404203. The reversal of 20423445404199 is 99140454432402.

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

It is not a de Polignac number, because 20423445404199 - 2⁷ = 20423445404071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423445404149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293582712 + ... + 293652269.

It is an arithmetic number, because the mean of its divisors is an integer number (3404201190654).

Almost surely, 2^{20423445404199} is an apocalyptic number.

20423445404199 is a deficient number, since it is larger than the sum of its proper divisors (6810164121033).

20423445404199 is a wasteful number, since it uses less digits than its factorization.

20423445404199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587246577.

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 20423445404199 in words is "twenty trillion, four hundred twenty-three billion, four hundred forty-five million, four hundred four thousand, one hundred ninety-nine".