6617644264068 has 96 divisors (see below), whose sum is σ = 16482760398720. Its totient is φ = 2059214776320.

The previous prime is 6617644264061. The next prime is 6617644264073. The reversal of 6617644264068 is 8604624467166.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6617644264061) 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, 52663698 + ... + 52789206.

It is an arithmetic number, because the mean of its divisors is an integer number (171695420820).

Almost surely, 2^{6617644264068} is an apocalyptic number.

6617644264068 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6617644264068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8241380199360).

6617644264068 is an abundant number, since it is smaller than the sum of its proper divisors (9865116134652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6617644264068 is a wasteful number, since it uses less digits than its factorization.

6617644264068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127637 (or 127635 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 60.

The spelling of 6617644264068 in words is "six trillion, six hundred seventeen billion, six hundred forty-four million, two hundred sixty-four thousand, sixty-eight".