3365640639867 has 32 divisors (see below), whose sum is σ = 4941307388160. Its totient is φ = 2020693288320.

The previous prime is 3365640639853. The next prime is 3365640639877. The reversal of 3365640639867 is 7689360465633.

It is not a de Polignac number, because 3365640639867 - 2¹¹ = 3365640637819 is a prime.

It is a super-2 number, since 2×3365640639867² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3365640639798 and 3365640639807.

It is not an unprimeable number, because it can be changed into a prime (3365640639877) 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, 19926013 + ... + 20094209.

It is an arithmetic number, because the mean of its divisors is an integer number (154415855880).

Almost surely, 2^{3365640639867} is an apocalyptic number.

3365640639867 is a deficient number, since it is larger than the sum of its proper divisors (1575666748293).

3365640639867 is a wasteful number, since it uses less digits than its factorization.

3365640639867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173883.

The product of its (nonzero) digits is 352719360, while the sum is 66.

Multiplying 3365640639867 by its sum of digits (66), we get a palindrome (222132282231222).

The spelling of 3365640639867 in words is "three trillion, three hundred sixty-five billion, six hundred forty million, six hundred thirty-nine thousand, eight hundred sixty-seven".