22461555605 has 4 divisors (see below), whose sum is σ = 26953866732. Its totient is φ = 17969244480.

The previous prime is 22461555583. The next prime is 22461555617. The reversal of 22461555605 is 50655516422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12101980081 + 10359575524 = 110009^2 + 101782^2 .

It is not a de Polignac number, because 22461555605 - 2²⁸ = 22193120149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246155556 + ... + 2246155565.

It is an arithmetic number, because the mean of its divisors is an integer number (6738466683).

Almost surely, 2^22461555605 is an apocalyptic number.

It is an amenable number.

22461555605 is a deficient number, since it is larger than the sum of its proper divisors (4492311127).

22461555605 is an equidigital number, since it uses as much as digits as its factorization.

22461555605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492311126.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 22461555605 in words is "twenty-two billion, four hundred sixty-one million, five hundred fifty-five thousand, six hundred five".