22887166643 has 16 divisors (see below), whose sum is σ = 25054486272. Its totient is φ = 20734428000.

The previous prime is 22887166637. The next prime is 22887166693. The reversal of 22887166643 is 34666178822.

It is a happy number.

It is not a de Polignac number, because 22887166643 - 2⁸ = 22887166387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22887166613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4090778 + ... + 4096368.

It is an arithmetic number, because the mean of its divisors is an integer number (1565905392).

Almost surely, 2^22887166643 is an apocalyptic number.

22887166643 is a deficient number, since it is larger than the sum of its proper divisors (2167319629).

22887166643 is a wasteful number, since it uses less digits than its factorization.

22887166643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6826.

The product of its digits is 4644864, while the sum is 53.

The spelling of 22887166643 in words is "twenty-two billion, eight hundred eighty-seven million, one hundred sixty-six thousand, six hundred forty-three".