3666624655213 has 6 divisors (see below), whose sum is σ = 3970368709674. Its totient is φ = 3384576604656.

The previous prime is 3666624655153. The next prime is 3666624655271. The reversal of 3666624655213 is 3125564266663.

It can be written as a sum of positive squares in 3 ways, for example, as 74890890244 + 3591733764969 = 273662^2 + 1895187^2 .

It is not a de Polignac number, because 3666624655213 - 2²⁹ = 3666087784301 is a prime.

It is a super-2 number, since 2×3666624655213² (a number of 26 digits) 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 (3666624655613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10848001770 + ... + 10848002107.

It is an arithmetic number, because the mean of its divisors is an integer number (661728118279).

Almost surely, 2^{3666624655213} is an apocalyptic number.

It is an amenable number.

3666624655213 is a deficient number, since it is larger than the sum of its proper divisors (303744054461).

3666624655213 is a wasteful number, since it uses less digits than its factorization.

3666624655213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21696003903 (or 21696003890 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 55.

The spelling of 3666624655213 in words is "three trillion, six hundred sixty-six billion, six hundred twenty-four million, six hundred fifty-five thousand, two hundred thirteen".