22406405603 has 4 divisors (see below), whose sum is σ = 23724429480. Its totient is φ = 21088381728.

The previous prime is 22406405591. The next prime is 22406405639. The reversal of 22406405603 is 30650460422.

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 22406405603 - 2⁸ = 22406405347 is a prime.

It is a super-2 number, since 2×22406405603² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22406405603.

It is not an unprimeable number, because it can be changed into a prime (22406405653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659011913 + ... + 659011946.

It is an arithmetic number, because the mean of its divisors is an integer number (5931107370).

Almost surely, 2^22406405603 is an apocalyptic number.

22406405603 is a deficient number, since it is larger than the sum of its proper divisors (1318023877).

22406405603 is a wasteful number, since it uses less digits than its factorization.

22406405603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318023876.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 22406405603 in words is "twenty-two billion, four hundred six million, four hundred five thousand, six hundred three".