16696319420 has 48 divisors (see below), whose sum is σ = 38541799296. Its totient is φ = 6025032000.

The previous prime is 16696319401. The next prime is 16696319443. The reversal of 16696319420 is 2491369661.

It is a happy number.

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, 260846 + ... + 318485.

It is an arithmetic number, because the mean of its divisors is an integer number (802954152).

Almost surely, 2^16696319420 is an apocalyptic number.

16696319420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16696319420 is an abundant number, since it is smaller than the sum of its proper divisors (21845479876).

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

16696319420 is a wasteful number, since it uses less digits than its factorization.

16696319420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579482 (or 579480 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 16696319420 in words is "sixteen billion, six hundred ninety-six million, three hundred nineteen thousand, four hundred twenty".