228165812237 has 8 divisors (see below), whose sum is σ = 248911616352. Its totient is φ = 207420584400.

The previous prime is 228165812227. The next prime is 228165812257. The reversal of 228165812237 is 732218561822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228165812237 - 2²⁶ = 228098703373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228165812191 and 228165812200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228165812227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472687 + ... + 1620227.

It is an arithmetic number, because the mean of its divisors is an integer number (31113952044).

Almost surely, 2^228165812237 is an apocalyptic number.

It is an amenable number.

228165812237 is a deficient number, since it is larger than the sum of its proper divisors (20745804115).

228165812237 is a wasteful number, since it uses less digits than its factorization.

228165812237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288139.

The product of its digits is 645120, while the sum is 47.

The spelling of 228165812237 in words is "two hundred twenty-eight billion, one hundred sixty-five million, eight hundred twelve thousand, two hundred thirty-seven".