22215643430643 has 48 divisors (see below), whose sum is σ = 36542490566400. Its totient is φ = 12907472947200.

The previous prime is 22215643430639. The next prime is 22215643430657. The reversal of 22215643430643 is 34603434651222.

22215643430643 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 564 + 3 + 43 + 0 + 6 + 43 = 666.

It is not a de Polignac number, because 22215643430643 - 2² = 22215643430639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22215643430543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74547318 + ... + 74844731.

It is an arithmetic number, because the mean of its divisors is an integer number (761301886800).

Almost surely, 2^{22215643430643} is an apocalyptic number.

22215643430643 is a deficient number, since it is larger than the sum of its proper divisors (14326847135757).

22215643430643 is a wasteful number, since it uses less digits than its factorization.

22215643430643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149392140 (or 149392137 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 45.

The spelling of 22215643430643 in words is "twenty-two trillion, two hundred fifteen billion, six hundred forty-three million, four hundred thirty thousand, six hundred forty-three".