22643350266 has 16 divisors (see below), whose sum is σ = 45317757600. Its totient is φ = 7542607248.

The previous prime is 22643350237. The next prime is 22643350283. The reversal of 22643350266 is 66205334622.

It is a super-2 number, since 2×22643350266² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284561 + ... + 1302068.

It is an arithmetic number, because the mean of its divisors is an integer number (2832359850).

Almost surely, 2^22643350266 is an apocalyptic number.

22643350266 is an abundant number, since it is smaller than the sum of its proper divisors (22674407334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22643350266 is a wasteful number, since it uses less digits than its factorization.

22643350266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588093.

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 22643350266 its reverse (66205334622), we get a palindrome (88848684888).

The spelling of 22643350266 in words is "twenty-two billion, six hundred forty-three million, three hundred fifty thousand, two hundred sixty-six".