227270431665 has 32 divisors (see below), whose sum is σ = 410066732160. Its totient is φ = 119401774272.

The previous prime is 227270431651. The next prime is 227270431667. The reversal of 227270431665 is 566134072722.

227270431665 is a `hidden beast` number, since 2 + 2 + 7 + 270 + 4 + 316 + 65 = 666.

It is not a de Polignac number, because 227270431665 - 2¹⁰ = 227270430641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 227270431665.

It is not an unprimeable number, because it can be changed into a prime (227270431667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12554274 + ... + 12572363.

It is an arithmetic number, because the mean of its divisors is an integer number (12814585380).

Almost surely, 2^227270431665 is an apocalyptic number.

It is an amenable number.

227270431665 is a deficient number, since it is larger than the sum of its proper divisors (182796300495).

227270431665 is a wasteful number, since it uses less digits than its factorization.

227270431665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25126718 (or 25126712 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 227270431665 in words is "two hundred twenty-seven billion, two hundred seventy million, four hundred thirty-one thousand, six hundred sixty-five".