331146663 has 8 divisors (see below), whose sum is σ = 460725888. Its totient is φ = 211165944.

The previous prime is 331146659. The next prime is 331146671. The reversal of 331146663 is 366641133.

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

It is not a de Polignac number, because 331146663 - 2² = 331146659 is a prime.

It is a super-2 number, since 2×331146663² = 219316224832071138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331146623) 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, 2399545 + ... + 2399682.

It is an arithmetic number, because the mean of its divisors is an integer number (57590736).

Almost surely, 2^331146663 is an apocalyptic number.

331146663 is a deficient number, since it is larger than the sum of its proper divisors (129579225).

331146663 is a wasteful number, since it uses less digits than its factorization.

331146663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4799253.

The product of its digits is 23328, while the sum is 33.

The square root of 331146663 is about 18197.4356160422. The cubic root of 331146663 is about 691.8417943603.

Adding to 331146663 its reverse (366641133), we get a palindrome (697787796).

The spelling of 331146663 in words is "three hundred thirty-one million, one hundred forty-six thousand, six hundred sixty-three".