16420613338 has 8 divisors (see below), whose sum is σ = 24632038260. Its totient is φ = 8209933920.

The previous prime is 16420613323. The next prime is 16420613359. The reversal of 16420613338 is 83331602461.

It can be written as a sum of positive squares in 2 ways, for example, as 16392449089 + 28164249 = 128033^2 + 5307^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16420613338² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16420613297 and 16420613306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127603 + ... + 221638.

Almost surely, 2^16420613338 is an apocalyptic number.

16420613338 is a deficient number, since it is larger than the sum of its proper divisors (8211424922).

16420613338 is a wasteful number, since it uses less digits than its factorization.

16420613338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372752.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 16420613338 in words is "sixteen billion, four hundred twenty million, six hundred thirteen thousand, three hundred thirty-eight".