1331146466 has 16 divisors (see below), whose sum is σ = 2157664824. Its totient is φ = 612274944.

The previous prime is 1331146381. The next prime is 1331146469. The reversal of 1331146466 is 6646411331.

It can be written as a sum of positive squares in 4 ways, for example, as 1330717441 + 429025 = 36479^2 + 655^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1331146469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79751 + ... + 94986.

Almost surely, 2^1331146466 is an apocalyptic number.

1331146466 is a deficient number, since it is larger than the sum of its proper divisors (826518358).

1331146466 is a wasteful number, since it uses less digits than its factorization.

1331146466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175045.

The product of its digits is 31104, while the sum is 35.

The square root of 1331146466 is about 36484.8799641715. The cubic root of 1331146466 is about 1100.0403472804.

Adding to 1331146466 its reverse (6646411331), we get a palindrome (7977557797).

The spelling of 1331146466 in words is "one billion, three hundred thirty-one million, one hundred forty-six thousand, four hundred sixty-six".