22403371643 has 4 divisors (see below), whose sum is σ = 22515951600. Its totient is φ = 22290791688.

The previous prime is 22403371633. The next prime is 22403371663. The reversal of 22403371643 is 34617330422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34617330422 = 2 ⋅17308665211.

It is a cyclic number.

It is not a de Polignac number, because 22403371643 - 2⁸ = 22403371387 is a prime.

It is a super-2 number, since 2×22403371643² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22403371633) 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 3 ways as a sum of consecutive naturals, for example, 56289680 + ... + 56290077.

It is an arithmetic number, because the mean of its divisors is an integer number (5628987900).

Almost surely, 2^22403371643 is an apocalyptic number.

22403371643 is a deficient number, since it is larger than the sum of its proper divisors (112579957).

22403371643 is a wasteful number, since it uses less digits than its factorization.

22403371643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112579956.

The product of its (nonzero) digits is 72576, while the sum is 35.

The spelling of 22403371643 in words is "twenty-two billion, four hundred three million, three hundred seventy-one thousand, six hundred forty-three".