19886960016 has 240 divisors, whose sum is σ = 69493552128. Its totient is φ = 5157676800.

The previous prime is 19886960003. The next prime is 19886960017. The reversal of 19886960016 is 61006968891.

19886960016 is a `hidden beast` number, since 19 + 8 + 8 + 6 + 9 + 600 + 16 = 666.

It is not an unprimeable number, because it can be changed into a prime (19886960017) 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, 13160701 + ... + 13162211.

Almost surely, 2^19886960016 is an apocalyptic number.

19886960016 is a gapful number since it is divisible by the number (16) 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 19886960016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34746776064).

19886960016 is an abundant number, since it is smaller than the sum of its proper divisors (49606592112).

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

19886960016 is a wasteful number, since it uses less digits than its factorization.

19886960016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 19886960016 in words is "nineteen billion, eight hundred eighty-six million, nine hundred sixty thousand, sixteen".