22157643066244 has 12 divisors (see below), whose sum is σ = 44315286132544. Its totient is φ = 9496132742664.

The previous prime is 22157643066203. The next prime is 22157643066277. The reversal of 22157643066244 is 44266034675122.

22157643066244 is an admirable number.

It is a super-2 number, since 2×22157643066244² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22157643066191 and 22157643066200.

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, 395672197584 + ... + 395672197639.

Almost surely, 2^{22157643066244} is an apocalyptic number.

It is an amenable number.

22157643066244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22157643066244 is a wasteful number, since it uses less digits than its factorization.

22157643066244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791344395234 (or 791344395232 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 22157643066244 in words is "twenty-two trillion, one hundred fifty-seven billion, six hundred forty-three million, sixty-six thousand, two hundred forty-four".