226661612705207 has 4 divisors (see below), whose sum is σ = 226664531460840. Its totient is φ = 226658693949576.

The previous prime is 226661612705183. The next prime is 226661612705237. The reversal of 226661612705207 is 702507216166622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 226661612705207 - 2²⁰ = 226661611656631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226661612705237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459261328 + ... + 1459416645.

It is an arithmetic number, because the mean of its divisors is an integer number (56666132865210).

Almost surely, 2^{226661612705207} is an apocalyptic number.

226661612705207 is a deficient number, since it is larger than the sum of its proper divisors (2918755633).

226661612705207 is an equidigital number, since it uses as much as digits as its factorization.

226661612705207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918755632.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 226661612705207 in words is "two hundred twenty-six trillion, six hundred sixty-one billion, six hundred twelve million, seven hundred five thousand, two hundred seven".