226111766565 has 16 divisors (see below), whose sum is σ = 362332867968. Its totient is φ = 120408261696.

The previous prime is 226111766561. The next prime is 226111766651. The reversal of 226111766565 is 565667111622.

It is not a de Polignac number, because 226111766565 - 2² = 226111766561 is a prime.

It is a super-2 number, since 2×226111766565² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226111766561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11532409 + ... + 11551998.

It is an arithmetic number, because the mean of its divisors is an integer number (22645804248).

Almost surely, 2^226111766565 is an apocalyptic number.

It is an amenable number.

226111766565 is a deficient number, since it is larger than the sum of its proper divisors (136221101403).

226111766565 is a wasteful number, since it uses less digits than its factorization.

226111766565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23085068.

The product of its digits is 907200, while the sum is 48.

The spelling of 226111766565 in words is "two hundred twenty-six billion, one hundred eleven million, seven hundred sixty-six thousand, five hundred sixty-five".