3335201661 has 32 divisors (see below), whose sum is σ = 5140976256. Its totient is φ = 1900800000.

The previous prime is 3335201531. The next prime is 3335201669. The reversal of 3335201661 is 1661025333.

It is a happy number.

It is not a de Polignac number, because 3335201661 - 2¹⁴ = 3335185277 is a prime.

It is a super-2 number, since 2×3335201661² = 22247140239074317842, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3335201669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1008711 + ... + 1012011.

It is an arithmetic number, because the mean of its divisors is an integer number (160655508).

Almost surely, 2^3335201661 is an apocalyptic number.

It is an amenable number.

3335201661 is a deficient number, since it is larger than the sum of its proper divisors (1805774595).

3335201661 is a wasteful number, since it uses less digits than its factorization.

3335201661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3335201661 is about 57751.2048445745. The cubic root of 3335201661 is about 1494.0806211410.

Adding to 3335201661 its reverse (1661025333), we get a palindrome (4996226994).

The spelling of 3335201661 in words is "three billion, three hundred thirty-five million, two hundred one thousand, six hundred sixty-one".