16323179240 has 32 divisors (see below), whose sum is σ = 36786734280. Its totient is φ = 6518679552.

The previous prime is 16323179233. The next prime is 16323179263. The reversal of 16323179240 is 4297132361.

It can be written as a sum of positive squares in 4 ways, for example, as 6586620964 + 9736558276 = 81158^2 + 98674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16323179194 and 16323179203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306017 + ... + 355376.

Almost surely, 2^16323179240 is an apocalyptic number.

16323179240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16323179240 is an abundant number, since it is smaller than the sum of its proper divisors (20463555040).

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

16323179240 is a wasteful number, since it uses less digits than its factorization.

16323179240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662021 (or 662017 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 16323179240 in words is "sixteen billion, three hundred twenty-three million, one hundred seventy-nine thousand, two hundred forty".