226700729161 has 9 divisors (see below), whose sum is σ = 227973839751. Its totient is φ = 225434696832.

The previous prime is 226700729141. The next prime is 226700729257. The reversal of 226700729161 is 161927007622.

The square root of 226700729161 is 476131.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 54926953225 + 171773775936 = 234365^2 + 414456^2 .

It is a de Polignac number, because none of the positive numbers 2^k-226700729161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226700729141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 91892050 + ... + 91894516.

It is an arithmetic number, because the mean of its divisors is an integer number (25330426639).

Almost surely, 2^226700729161 is an apocalyptic number.

226700729161 is the 476131-st square number.

226700729161 is the 238066-th centered octagonal number.

It is an amenable number.

226700729161 is a deficient number, since it is larger than the sum of its proper divisors (1273110590).

226700729161 is an frugal number, since it uses more digits than its factorization.

226700729161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 226700729161 in words is "two hundred twenty-six billion, seven hundred million, seven hundred twenty-nine thousand, one hundred sixty-one".