16383155439 has 24 divisors (see below), whose sum is σ = 25439783088. Its totient is φ = 9351054720.

The previous prime is 16383155431. The next prime is 16383155443. The reversal of 16383155439 is 93455138361.

It is not a de Polignac number, because 16383155439 - 2³ = 16383155431 is a prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16383155431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65379 + ... + 192459.

It is an arithmetic number, because the mean of its divisors is an integer number (1059990962).

Almost surely, 2^16383155439 is an apocalyptic number.

16383155439 is a deficient number, since it is larger than the sum of its proper divisors (9056627649).

16383155439 is a wasteful number, since it uses less digits than its factorization.

16383155439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127975 (or 127968 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The spelling of 16383155439 in words is "sixteen billion, three hundred eighty-three million, one hundred fifty-five thousand, four hundred thirty-nine".