22413545657 has 4 divisors (see below), whose sum is σ = 22644613236. Its totient is φ = 22182478080.

The previous prime is 22413545647. The next prime is 22413545683. The reversal of 22413545657 is 75654531422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75654531422 = 2 ⋅37827265711.

It can be written as a sum of positive squares in 2 ways, for example, as 12872944681 + 9540600976 = 113459^2 + 97676^2 .

It is a cyclic number.

It is not a de Polignac number, because 22413545657 - 2¹⁴ = 22413529273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22413545647) 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, 115533644 + ... + 115533837.

It is an arithmetic number, because the mean of its divisors is an integer number (5661153309).

Almost surely, 2^22413545657 is an apocalyptic number.

It is an amenable number.

22413545657 is a deficient number, since it is larger than the sum of its proper divisors (231067579).

22413545657 is an equidigital number, since it uses as much as digits as its factorization.

22413545657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231067578.

The product of its digits is 1008000, while the sum is 44.

The spelling of 22413545657 in words is "twenty-two billion, four hundred thirteen million, five hundred forty-five thousand, six hundred fifty-seven".