3224685665881 has 4 divisors (see below), whose sum is σ = 3224691907200. Its totient is φ = 3224679424564.

The previous prime is 3224685665837. The next prime is 3224685665897. The reversal of 3224685665881 is 1885665864223.

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 3224685665881 - 2²³ = 3224677277273 is a prime.

It is a super-2 number, since 2×3224685665881² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3224685665281) 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, 2268001 + ... + 3404878.

It is an arithmetic number, because the mean of its divisors is an integer number (806172976800).

Almost surely, 2^{3224685665881} is an apocalyptic number.

It is an amenable number.

3224685665881 is a deficient number, since it is larger than the sum of its proper divisors (6241319).

3224685665881 is an equidigital number, since it uses as much as digits as its factorization.

3224685665881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241318.

The product of its digits is 132710400, while the sum is 64.

The spelling of 3224685665881 in words is "three trillion, two hundred twenty-four billion, six hundred eighty-five million, six hundred sixty-five thousand, eight hundred eighty-one".