226168691 has 16 divisors (see below), whose sum is σ = 265588224. Its totient is φ = 188564544.

The previous prime is 226168643. The next prime is 226168693. The reversal of 226168691 is 196861622.

It is a happy number.

It is not a de Polignac number, because 226168691 - 2¹⁸ = 225906547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226168693) 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, 77735 + ... + 80591.

It is an arithmetic number, because the mean of its divisors is an integer number (16599264).

Almost surely, 2^226168691 is an apocalyptic number.

226168691 is a deficient number, since it is larger than the sum of its proper divisors (39419533).

226168691 is a wasteful number, since it uses less digits than its factorization.

226168691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170.

The product of its digits is 62208, while the sum is 41.

The square root of 226168691 is about 15038.9059110030. The cubic root of 226168691 is about 609.2714503726.

The spelling of 226168691 in words is "two hundred twenty-six million, one hundred sixty-eight thousand, six hundred ninety-one".