19350216016 has 40 divisors (see below), whose sum is σ = 38125814504. Its totient is φ = 9511464960.

The previous prime is 19350216013. The next prime is 19350216029. The reversal of 19350216016 is 61061205391.

It can be written as a sum of positive squares in 4 ways, for example, as 1259966016 + 18090250000 = 35496^2 + 134500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19350216013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409640 + ... + 2417656.

Almost surely, 2^19350216016 is an apocalyptic number.

19350216016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19350216016 is a deficient number, since it is larger than the sum of its proper divisors (18775598488).

19350216016 is a wasteful number, since it uses less digits than its factorization.

19350216016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10559 (or 10553 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 19350216016 in words is "nineteen billion, three hundred fifty million, two hundred sixteen thousand, sixteen".