17161245816 has 512 divisors, whose sum is σ = 57088281600. Its totient is φ = 4211343360.

The previous prime is 17161245809. The next prime is 17161245923. The reversal of 17161245816 is 61854216171.

Its product of digits (80640) is a multiple of the sum of its prime divisors (315).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 125264500 + ... + 125264636.

It is an arithmetic number, because the mean of its divisors is an integer number (111500550).

Almost surely, 2^17161245816 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 17161245816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28544140800).

17161245816 is an abundant number, since it is smaller than the sum of its proper divisors (39927035784).

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

17161245816 is a wasteful number, since it uses less digits than its factorization.

17161245816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 315 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The spelling of 17161245816 in words is "seventeen billion, one hundred sixty-one million, two hundred forty-five thousand, eight hundred sixteen".