3320646642 has 48 divisors (see below), whose sum is σ = 7237757592. Its totient is φ = 1100286720.

The previous prime is 3320646619. The next prime is 3320646647. The reversal of 3320646642 is 2466460233.

3320646642 is a `hidden beast` number, since 3 + 3 + 2 + 0 + 6 + 4 + 6 + 642 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 785624841 + 2535021801 = 28029^2 + 50349^2 .

It is a super-2 number, since 2×3320646642² = 22053388242051752328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3320646597 and 3320646606.

It is not an unprimeable number, because it can be changed into a prime (3320646647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2972268 + ... + 2973384.

Almost surely, 2^3320646642 is an apocalyptic number.

3320646642 is an abundant number, since it is smaller than the sum of its proper divisors (3917110950).

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

3320646642 is a wasteful number, since it uses less digits than its factorization.

3320646642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 3320646642 is about 57625.0522082193. The cubic root of 3320646642 is about 1491.9040328248.

The spelling of 3320646642 in words is "three billion, three hundred twenty million, six hundred forty-six thousand, six hundred forty-two".