3251666313 has 36 divisors (see below), whose sum is σ = 5785090740. Its totient is φ = 1748791296.

The previous prime is 3251666287. The next prime is 3251666317. The reversal of 3251666313 is 3136661523.

It can be written as a sum of positive squares in 2 ways, for example, as 1401978249 + 1849688064 = 37443^2 + 43008^2 .

It is not a de Polignac number, because 3251666313 - 2⁸ = 3251666057 is a prime.

It is a super-2 number, since 2×3251666313² = 21146667622198027938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3251666317) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 209368 + ... + 224361.

It is an arithmetic number, because the mean of its divisors is an integer number (160696965).

Almost surely, 2^3251666313 is an apocalyptic number.

It is an amenable number.

3251666313 is a deficient number, since it is larger than the sum of its proper divisors (2533424427).

3251666313 is a wasteful number, since it uses less digits than its factorization.

3251666313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433766 (or 433756 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3251666313 is about 57023.3839139699. The cubic root of 3251666313 is about 1481.5011420136.

The spelling of 3251666313 in words is "three billion, two hundred fifty-one million, six hundred sixty-six thousand, three hundred thirteen".