3299621605650 has 72 divisors (see below), whose sum is σ = 8946313636260. Its totient is φ = 871826613120.

The previous prime is 3299621605633. The next prime is 3299621605669. The reversal of 3299621605650 is 565061269923.

It is a happy number.

3299621605650 is a `hidden beast` number, since 3 + 2 + 9 + 9 + 6 + 21 + 605 + 6 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 730804426641 + 2568817179009 = 854871^2 + 1602753^2 .

It is a super-2 number, since 2×3299621605650² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33586237 + ... + 33684336.

Almost surely, 2^{3299621605650} is an apocalyptic number.

3299621605650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3299621605650 is an abundant number, since it is smaller than the sum of its proper divisors (5646692030610).

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

3299621605650 is a wasteful number, since it uses less digits than its factorization.

3299621605650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67270700 (or 67270692 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 3299621605650 in words is "three trillion, two hundred ninety-nine billion, six hundred twenty-one million, six hundred five thousand, six hundred fifty".