6617644264067 has 4 divisors (see below), whose sum is σ = 6617655425160. Its totient is φ = 6617633102976.

The previous prime is 6617644264061. The next prime is 6617644264073. The reversal of 6617644264067 is 7604624467166.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6617644264061) and next prime (6617644264073).

It is a cyclic number.

It is not a de Polignac number, because 6617644264067 - 2²⁴ = 6617627486851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6617644263997 and 6617644264015.

It is not an unprimeable number, because it can be changed into a prime (6617644264061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4638113 + ... + 5894690.

It is an arithmetic number, because the mean of its divisors is an integer number (1654413856290).

Almost surely, 2^{6617644264067} is an apocalyptic number.

6617644264067 is a deficient number, since it is larger than the sum of its proper divisors (11161093).

6617644264067 is a wasteful number, since it uses less digits than its factorization.

6617644264067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11161092.

The product of its (nonzero) digits is 48771072, while the sum is 59.

The spelling of 6617644264067 in words is "six trillion, six hundred seventeen billion, six hundred forty-four million, two hundred sixty-four thousand, sixty-seven".