17157964668 has 144 divisors (see below), whose sum is σ = 45880934400. Its totient is φ = 4960061568.

The previous prime is 17157964667. The next prime is 17157964673. The reversal of 17157964668 is 86646975171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17157964667) 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, 7150933 + ... + 7153331.

It is an arithmetic number, because the mean of its divisors is an integer number (318617600).

Almost surely, 2^17157964668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17157964668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22940467200).

17157964668 is an abundant number, since it is smaller than the sum of its proper divisors (28722969732).

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

17157964668 is a wasteful number, since it uses less digits than its factorization.

17157964668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584 (or 2563 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 60.

The spelling of 17157964668 in words is "seventeen billion, one hundred fifty-seven million, nine hundred sixty-four thousand, six hundred sixty-eight".