331665001 has 8 divisors (see below), whose sum is σ = 343906304. Its totient is φ = 319520160.

The previous prime is 331664987. The next prime is 331665013. The reversal of 331665001 is 100566133.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331665001 is a prime.

It is a super-2 number, since 2×331665001² = 220003345776660002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331665071) 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, 17076 + ... + 30901.

It is an arithmetic number, because the mean of its divisors is an integer number (42988288).

Almost surely, 2^331665001 is an apocalyptic number.

331665001 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

331665001 is a deficient number, since it is larger than the sum of its proper divisors (12241303).

331665001 is a wasteful number, since it uses less digits than its factorization.

331665001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48231.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 331665001 is about 18211.6721088427. The cubic root of 331665001 is about 692.2025820788.

The spelling of 331665001 in words is "three hundred thirty-one million, six hundred sixty-five thousand, one".