22015435400423 has 4 divisors (see below), whose sum is σ = 22610447168040. Its totient is φ = 21420423632808.

The previous prime is 22015435400393. The next prime is 22015435400467. The reversal of 22015435400423 is 32400453451022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22015435400423 - 2⁴⁰ = 20915923772647 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 (22015435402423) 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, 297505883753 + ... + 297505883826.

It is an arithmetic number, because the mean of its divisors is an integer number (5652611792010).

Almost surely, 2^{22015435400423} is an apocalyptic number.

22015435400423 is a deficient number, since it is larger than the sum of its proper divisors (595011767617).

22015435400423 is an equidigital number, since it uses as much as digits as its factorization.

22015435400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595011767616.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 22015435400423 its reverse (32400453451022), we get a palindrome (54415888851445).

The spelling of 22015435400423 in words is "twenty-two trillion, fifteen billion, four hundred thirty-five million, four hundred thousand, four hundred twenty-three".