16539755078799 has 16 divisors (see below), whose sum is σ = 24554496076800. Its totient is φ = 11003483537208.

The previous prime is 16539755078689. The next prime is 16539755078801. The reversal of 16539755078799 is 99787055793561.

16539755078799 is a `hidden beast` number, since 1 + 6 + 5 + 39 + 7 + 5 + 507 + 8 + 79 + 9 = 666.

It is not a de Polignac number, because 16539755078799 - 2¹¹ = 16539755076751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16539755038799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639427069 + ... + 639452934.

It is an arithmetic number, because the mean of its divisors is an integer number (1534656004800).

Almost surely, 2^{16539755078799} is an apocalyptic number.

16539755078799 is a deficient number, since it is larger than the sum of its proper divisors (8014740998001).

16539755078799 is a wasteful number, since it uses less digits than its factorization.

16539755078799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278880491 (or 1278880485 counting only the distinct ones).

The product of its (nonzero) digits is 4500846000, while the sum is 81.

The spelling of 16539755078799 in words is "sixteen trillion, five hundred thirty-nine billion, seven hundred fifty-five million, seventy-eight thousand, seven hundred ninety-nine".