19953901158 has 16 divisors (see below), whose sum is σ = 39912185856. Its totient is φ = 6650569800.

The previous prime is 19953901151. The next prime is 19953901169. The reversal of 19953901158 is 85110935991.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19953901158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19953901151) 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, 121918 + ... + 234033.

It is an arithmetic number, because the mean of its divisors is an integer number (2494511616).

Almost surely, 2^19953901158 is an apocalyptic number.

19953901158 is an abundant number, since it is smaller than the sum of its proper divisors (19958284698).

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

19953901158 is a wasteful number, since it uses less digits than its factorization.

19953901158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365299.

The product of its (nonzero) digits is 437400, while the sum is 51.

The spelling of 19953901158 in words is "nineteen billion, nine hundred fifty-three million, nine hundred one thousand, one hundred fifty-eight".