22223155205665 has 64 divisors (see below), whose sum is σ = 27375363132480. Its totient is φ = 17313730560000.

The previous prime is 22223155205639. The next prime is 22223155205677. The reversal of 22223155205665 is 56650255132222.

It can be written as a sum of positive squares in 32 ways, for example, as 5800698839296 + 16422456366369 = 2408464^2 + 4052463^2 .

It is not a de Polignac number, because 22223155205665 - 2¹³ = 22223155197473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13709533555 + ... + 13709535175.

It is an arithmetic number, because the mean of its divisors is an integer number (427740048945).

Almost surely, 2^{22223155205665} is an apocalyptic number.

It is an amenable number.

22223155205665 is a deficient number, since it is larger than the sum of its proper divisors (5152207926815).

22223155205665 is a wasteful number, since it uses less digits than its factorization.

22223155205665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 22223155205665 in words is "twenty-two trillion, two hundred twenty-three billion, one hundred fifty-five million, two hundred five thousand, six hundred sixty-five".