22303343997 has 36 divisors (see below), whose sum is σ = 36368028060. Its totient is φ = 13151825280.

The previous prime is 22303343989. The next prime is 22303343999. The reversal of 22303343997 is 79934330322.

22303343997 is a `hidden beast` number, since 223 + 0 + 3 + 34 + 399 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20729952441 + 1573391556 = 143979^2 + 39666^2 .

It is not a de Polignac number, because 22303343997 - 2³ = 22303343989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22303343999) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 236472 + ... + 317057.

Almost surely, 2^22303343997 is an apocalyptic number.

It is an amenable number.

22303343997 is a deficient number, since it is larger than the sum of its proper divisors (14064684063).

22303343997 is a wasteful number, since it uses less digits than its factorization.

22303343997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553594 (or 553580 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 45.

The spelling of 22303343997 in words is "twenty-two billion, three hundred three million, three hundred forty-three thousand, nine hundred ninety-seven".