19558008008 has 32 divisors (see below), whose sum is σ = 45720020160. Its totient is φ = 7620002880.

The previous prime is 19558007993. The next prime is 19558008023. The reversal of 19558008008 is 80080085591.

It is an interprime number because it is at equal distance from previous prime (19558007993) and next prime (19558008023).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a self number, because there is not a number n which added to its sum of digits gives 19558008008.

It is an unprimeable number.

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, 15874391 + ... + 15875622.

It is an arithmetic number, because the mean of its divisors is an integer number (1428750630).

Almost surely, 2^19558008008 is an apocalyptic number.

It is an amenable number.

19558008008 is an abundant number, since it is smaller than the sum of its proper divisors (26162012152).

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

19558008008 is a wasteful number, since it uses less digits than its factorization.

19558008008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31750037 (or 31750033 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 44.

The spelling of 19558008008 in words is "nineteen billion, five hundred fifty-eight million, eight thousand, eight".