19952943336 has 96 divisors (see below), whose sum is σ = 54571837320. Its totient is φ = 6585753600.

The previous prime is 19952943319. The next prime is 19952943349. The reversal of 19952943336 is 63334925991.

19952943336 is a `hidden beast` number, since 19 + 9 + 5 + 294 + 3 + 336 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13195116900 + 6757826436 = 114870^2 + 82206^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3137536 + ... + 3143888.

Almost surely, 2^19952943336 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 19952943336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27285918660).

19952943336 is an abundant number, since it is smaller than the sum of its proper divisors (34618893984).

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

19952943336 is a wasteful number, since it uses less digits than its factorization.

19952943336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787 (or 6780 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 54.

The spelling of 19952943336 in words is "nineteen billion, nine hundred fifty-two million, nine hundred forty-three thousand, three hundred thirty-six".