19916630598 has 16 divisors (see below), whose sum is σ = 40804804656. Its totient is φ = 6476952960.

The previous prime is 19916630597. The next prime is 19916630627. The reversal of 19916630598 is 89503661991.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19916630593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40480711 + ... + 40481202.

It is an arithmetic number, because the mean of its divisors is an integer number (2550300291).

Almost surely, 2^19916630598 is an apocalyptic number.

19916630598 is an abundant number, since it is smaller than the sum of its proper divisors (20888174058).

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

19916630598 is a wasteful number, since it uses less digits than its factorization.

19916630598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80961959.

The product of its (nonzero) digits is 3149280, while the sum is 57.

The spelling of 19916630598 in words is "nineteen billion, nine hundred sixteen million, six hundred thirty thousand, five hundred ninety-eight".