22040346065 has 8 divisors (see below), whose sum is σ = 28004204520. Its totient is φ = 16595084032.

The previous prime is 22040346043. The next prime is 22040346079. The reversal of 22040346065 is 56064304022.

It can be written as a sum of positive squares in 4 ways, for example, as 998812816 + 21041533249 = 31604^2 + 145057^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22040346065 - 2⁶ = 22040346001 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129649010 + ... + 129649179.

It is an arithmetic number, because the mean of its divisors is an integer number (3500525565).

Almost surely, 2^22040346065 is an apocalyptic number.

It is an amenable number.

22040346065 is a deficient number, since it is larger than the sum of its proper divisors (5963858455).

22040346065 is a wasteful number, since it uses less digits than its factorization.

22040346065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259298211.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 22040346065 in words is "twenty-two billion, forty million, three hundred forty-six thousand, sixty-five".