331665466 has 16 divisors (see below), whose sum is σ = 560233728. Its totient is φ = 145893600.

The previous prime is 331665449. The next prime is 331665469. The reversal of 331665466 is 664566133.

It is a super-2 number, since 2×331665466² = 220003962673994312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331665469) 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, 242475 + ... + 243838.

It is an arithmetic number, because the mean of its divisors is an integer number (35014608).

Almost surely, 2^331665466 is an apocalyptic number.

331665466 is a deficient number, since it is larger than the sum of its proper divisors (228568262).

331665466 is a wasteful number, since it uses less digits than its factorization.

331665466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486357.

The product of its digits is 233280, while the sum is 40.

The square root of 331665466 is about 18211.6848753760. The cubic root of 331665466 is about 692.2029055719.

The spelling of 331665466 in words is "three hundred thirty-one million, six hundred sixty-five thousand, four hundred sixty-six".