20892245223 has 4 divisors (see below), whose sum is σ = 27856326968. Its totient is φ = 13928163480.

The previous prime is 20892245219. The next prime is 20892245233. The reversal of 20892245223 is 32254229802.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20892245223 - 2² = 20892245219 is a prime.

It is the 144542-nd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20892245233) by changing a digit.

It is a nontrivial repunit in base 144541.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3482040868 + ... + 3482040873.

It is an arithmetic number, because the mean of its divisors is an integer number (6964081742).

Almost surely, 2^20892245223 is an apocalyptic number.

20892245223 is a deficient number, since it is larger than the sum of its proper divisors (6964081745).

20892245223 is an equidigital number, since it uses as much as digits as its factorization.

20892245223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964081744.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 20892245223 in words is "twenty billion, eight hundred ninety-two million, two hundred forty-five thousand, two hundred twenty-three".