3321645016 has 16 divisors (see below), whose sum is σ = 6232008240. Its totient is φ = 1659776160.

The previous prime is 3321645013. The next prime is 3321645029. The reversal of 3321645016 is 6105461233.

It is a super-2 number, since 2×3321645016² = 22066651224635280512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321645013) 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, 117220 + ... + 142771.

It is an arithmetic number, because the mean of its divisors is an integer number (389500515).

Almost surely, 2^3321645016 is an apocalyptic number.

It is an amenable number.

3321645016 is a deficient number, since it is larger than the sum of its proper divisors (2910363224).

3321645016 is a wasteful number, since it uses less digits than its factorization.

3321645016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261594 (or 261590 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3321645016 is about 57633.7142304745. The cubic root of 3321645016 is about 1492.0535347249.

The spelling of 3321645016 in words is "three billion, three hundred twenty-one million, six hundred forty-five thousand, sixteen".