16138132399 has 8 divisors (see below), whose sum is σ = 16249748480. Its totient is φ = 16026579000.

The previous prime is 16138132331. The next prime is 16138132433. The reversal of 16138132399 is 99323183161.

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

It is a cyclic number.

It is not a de Polignac number, because 16138132399 - 2¹⁹ = 16137608111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16138139399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578134 + ... + 605404.

It is an arithmetic number, because the mean of its divisors is an integer number (2031218560).

Almost surely, 2^16138132399 is an apocalyptic number.

16138132399 is a deficient number, since it is larger than the sum of its proper divisors (111616081).

16138132399 is a wasteful number, since it uses less digits than its factorization.

16138132399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31341.

The product of its digits is 209952, while the sum is 46.

The spelling of 16138132399 in words is "sixteen billion, one hundred thirty-eight million, one hundred thirty-two thousand, three hundred ninety-nine".