22042566405 has 24 divisors (see below), whose sum is σ = 38507968512. Its totient is φ = 11663465184.

The previous prime is 22042566379. The next prime is 22042566407. The reversal of 22042566405 is 50466524022.

22042566405 is a `hidden beast` number, since 2 + 2 + 0 + 4 + 2 + 5 + 6 + 640 + 5 = 666.

It is not a de Polignac number, because 22042566405 - 2⁷ = 22042566277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22042566405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042566407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1922769 + ... + 1934198.

It is an arithmetic number, because the mean of its divisors is an integer number (1604498688).

Almost surely, 2^22042566405 is an apocalyptic number.

It is an amenable number.

22042566405 is a deficient number, since it is larger than the sum of its proper divisors (16465402107).

22042566405 is a wasteful number, since it uses less digits than its factorization.

22042566405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857105 (or 3857102 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 22042566405 in words is "twenty-two billion, forty-two million, five hundred sixty-six thousand, four hundred five".