19908516096 has 144 divisors (see below), whose sum is σ = 67283574400. Its totient is φ = 5688133632.

The previous prime is 19908516091. The next prime is 19908516109. The reversal of 19908516096 is 69061580991.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (19908516091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157351 + ... + 254118.

Almost surely, 2^19908516096 is an apocalyptic number.

19908516096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19908516096 is an abundant number, since it is smaller than the sum of its proper divisors (47375058304).

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

19908516096 is an equidigital number, since it uses as much as digits as its factorization.

19908516096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411501 (or 411481 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The spelling of 19908516096 in words is "nineteen billion, nine hundred eight million, five hundred sixteen thousand, ninety-six".