3333009661 has 4 divisors (see below), whose sum is σ = 3364159392. Its totient is φ = 3301859932.

The previous prime is 3333009607. The next prime is 3333009689. The reversal of 3333009661 is 1669003333.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3333009661 - 2¹⁷ = 3332878589 is a prime.

It is a super-2 number, since 2×3333009661² = 22217906800638669842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3333009601) 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, 15574705 + ... + 15574918.

It is an arithmetic number, because the mean of its divisors is an integer number (841039848).

Almost surely, 2^3333009661 is an apocalyptic number.

It is an amenable number.

3333009661 is a deficient number, since it is larger than the sum of its proper divisors (31149731).

3333009661 is a wasteful number, since it uses less digits than its factorization.

3333009661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31149730.

The product of its (nonzero) digits is 26244, while the sum is 34.

The square root of 3333009661 is about 57732.2237662815. The cubic root of 3333009661 is about 1493.7532303963.

The spelling of 3333009661 in words is "three billion, three hundred thirty-three million, nine thousand, six hundred sixty-one".