3331643636 has 12 divisors (see below), whose sum is σ = 5881973412. Its totient is φ = 1651079808.

The previous prime is 3331643621. The next prime is 3331643657. The reversal of 3331643636 is 6363461333.

3331643636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 593214736 + 2738428900 = 24356^2 + 52330^2 .

It is a super-2 number, since 2×3331643636² = 22199698634598600992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3331643636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3684995 + ... + 3685898.

It is an arithmetic number, because the mean of its divisors is an integer number (490164451).

Almost surely, 2^3331643636 is an apocalyptic number.

It is an amenable number.

3331643636 is a deficient number, since it is larger than the sum of its proper divisors (2550329776).

3331643636 is a wasteful number, since it uses less digits than its factorization.

3331643636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7371010 (or 7371008 counting only the distinct ones).

The product of its digits is 209952, while the sum is 38.

The square root of 3331643636 is about 57720.3918559117. The cubic root of 3331643636 is about 1493.5491322695.

The spelling of 3331643636 in words is "three billion, three hundred thirty-one million, six hundred forty-three thousand, six hundred thirty-six".