236227356161 has 4 divisors (see below), whose sum is σ = 250123083012. Its totient is φ = 222331629312.

The previous prime is 236227356151. The next prime is 236227356181. The reversal of 236227356161 is 161653722632.

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

It can be written as a sum of positive squares in 2 ways, for example, as 119643351025 + 116584005136 = 345895^2 + 341444^2 .

It is a de Polignac number, because none of the positive numbers 2^k-236227356161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (236227356151) 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, 6947863400 + ... + 6947863433.

It is an arithmetic number, because the mean of its divisors is an integer number (62530770753).

Almost surely, 2^236227356161 is an apocalyptic number.

It is an amenable number.

236227356161 is a deficient number, since it is larger than the sum of its proper divisors (13895726851).

236227356161 is a wasteful number, since it uses less digits than its factorization.

236227356161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13895726850.

The product of its digits is 544320, while the sum is 44.

The spelling of 236227356161 in words is "two hundred thirty-six billion, two hundred twenty-seven million, three hundred fifty-six thousand, one hundred sixty-one".