22053616421405 has 16 divisors (see below), whose sum is σ = 27195995400240. Its totient is φ = 17155698227712.

The previous prime is 22053616421357. The next prime is 22053616421407. The reversal of 22053616421405 is 50412461635022.

It can be written as a sum of positive squares in 8 ways, for example, as 345900425689 + 21707715995716 = 588133^2 + 4659154^2 .

It is a cyclic number.

It is not a de Polignac number, because 22053616421405 - 2⁶ = 22053616421341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22053616421407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35664710 + ... + 36277799.

It is an arithmetic number, because the mean of its divisors is an integer number (1699749712515).

Almost surely, 2^{22053616421405} is an apocalyptic number.

It is an amenable number.

22053616421405 is a deficient number, since it is larger than the sum of its proper divisors (5142378978835).

22053616421405 is a wasteful number, since it uses less digits than its factorization.

22053616421405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71944208.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 22053616421405 in words is "twenty-two trillion, fifty-three billion, six hundred sixteen million, four hundred twenty-one thousand, four hundred five".