16345773438 has 16 divisors (see below), whose sum is σ = 33451815936. Its totient is φ = 5321879640.

The previous prime is 16345773421. The next prime is 16345773449. The reversal of 16345773438 is 83437754361.

It is a super-3 number, since 3×16345773438³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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, 31677598 + ... + 31678113.

It is an arithmetic number, because the mean of its divisors is an integer number (2090738496).

Almost surely, 2^16345773438 is an apocalyptic number.

16345773438 is an abundant number, since it is smaller than the sum of its proper divisors (17106042498).

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

16345773438 is a wasteful number, since it uses less digits than its factorization.

16345773438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63355759.

The product of its digits is 5080320, while the sum is 51.

The spelling of 16345773438 in words is "sixteen billion, three hundred forty-five million, seven hundred seventy-three thousand, four hundred thirty-eight".