331666662 has 8 divisors (see below), whose sum is σ = 663333336. Its totient is φ = 110555552.

The previous prime is 331666627. The next prime is 331666663. The reversal of 331666662 is 266666133.

It is a happy number.

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

331666662 is an admirable number.

It is a super-2 number, since 2×331666662² = 220005549364444488, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 331666662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331666663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27638883 + ... + 27638894.

It is an arithmetic number, because the mean of its divisors is an integer number (82916667).

Almost surely, 2^331666662 is an apocalyptic number.

331666662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331666662 is a wasteful number, since it uses less digits than its factorization.

331666662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55277782.

The product of its digits is 139968, while the sum is 39.

The square root of 331666662 is about 18211.7177114077. The cubic root of 331666662 is about 692.2037376088.

The spelling of 331666662 in words is "three hundred thirty-one million, six hundred sixty-six thousand, six hundred sixty-two".