19703495616 has 112 divisors (see below), whose sum is σ = 59620733184. Its totient is φ = 5625686016.

The previous prime is 19703495593. The next prime is 19703495641. The reversal of 19703495616 is 61659430791.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2351851 + ... + 2360213.

Almost surely, 2^19703495616 is an apocalyptic number.

19703495616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19703495616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29810366592).

19703495616 is an abundant number, since it is smaller than the sum of its proper divisors (39917237568).

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

19703495616 is a wasteful number, since it uses less digits than its factorization.

19703495616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10138 (or 10128 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 19703495616 in words is "nineteen billion, seven hundred three million, four hundred ninety-five thousand, six hundred sixteen".