19717340160 has 176 divisors, whose sum is σ = 72074313216. Its totient is φ = 4506796032.

The previous prime is 19717340147. The next prime is 19717340171. The reversal of 19717340160 is 6104371791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15829 + ... + 199211.

Almost surely, 2^19717340160 is an apocalyptic number.

19717340160 is a gapful number since it is divisible by the number (10) 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 19717340160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36037156608).

19717340160 is an abundant number, since it is smaller than the sum of its proper divisors (52356973056).

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

19717340160 is a wasteful number, since it uses less digits than its factorization.

19717340160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183418 (or 183400 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The spelling of 19717340160 in words is "nineteen billion, seven hundred seventeen million, three hundred forty thousand, one hundred sixty".