1665476227 has 8 divisors (see below), whose sum is σ = 1711043936. Its totient is φ = 1619937792.

The previous prime is 1665476143. The next prime is 1665476237. The reversal of 1665476227 is 7226745661.

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 1665476227 - 2²⁷ = 1531258499 is a prime.

It is a super-2 number, since 2×1665476227² = 5547622125404311058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1665476237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158563 + ... + 168739.

It is an arithmetic number, because the mean of its divisors is an integer number (213880492).

Almost surely, 2^1665476227 is an apocalyptic number.

1665476227 is a deficient number, since it is larger than the sum of its proper divisors (45567709).

1665476227 is a wasteful number, since it uses less digits than its factorization.

1665476227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14637.

The product of its digits is 846720, while the sum is 46.

The square root of 1665476227 is about 40810.2465932270. The cubic root of 1665476227 is about 1185.3487498028.

The spelling of 1665476227 in words is "one billion, six hundred sixty-five million, four hundred seventy-six thousand, two hundred twenty-seven".