16319391760 has 80 divisors (see below), whose sum is σ = 43768377216. Its totient is φ = 5542907904.

The previous prime is 16319391749. The next prime is 16319391773. The reversal of 16319391760 is 6719391361.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 16319391760.

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, 76257 + ... + 196096.

Almost surely, 2^16319391760 is an apocalyptic number.

16319391760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16319391760 is an abundant number, since it is smaller than the sum of its proper divisors (27448985456).

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

16319391760 is a wasteful number, since it uses less digits than its factorization.

16319391760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272480 (or 272474 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 46.

The spelling of 16319391760 in words is "sixteen billion, three hundred nineteen million, three hundred ninety-one thousand, seven hundred sixty".