6364173322661 has 48 divisors (see below), whose sum is σ = 8147246091264. Its totient is φ = 4864489344000.

The previous prime is 6364173322649. The next prime is 6364173322679. The reversal of 6364173322661 is 1662233714636.

It is not a de Polignac number, because 6364173322661 - 2²⁶ = 6364106213797 is a prime.

It is a super-2 number, since 2×6364173322661² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6364173322681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 259951541 + ... + 259976021.

It is an arithmetic number, because the mean of its divisors is an integer number (169734293568).

Almost surely, 2^{6364173322661} is an apocalyptic number.

It is an amenable number.

6364173322661 is a deficient number, since it is larger than the sum of its proper divisors (1783072768603).

6364173322661 is a wasteful number, since it uses less digits than its factorization.

6364173322661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30354 (or 30343 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 50.

The spelling of 6364173322661 in words is "six trillion, three hundred sixty-four billion, one hundred seventy-three million, three hundred twenty-two thousand, six hundred sixty-one".