16377361604999 has 4 divisors (see below), whose sum is σ = 16539513700200. Its totient is φ = 16215209509800.

The previous prime is 16377361604987. The next prime is 16377361605019. The reversal of 16377361604999 is 99940616377361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16377361604999 - 2¹⁶ = 16377361539463 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 (16377361604699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81076047449 + ... + 81076047650.

It is an arithmetic number, because the mean of its divisors is an integer number (4134878425050).

Almost surely, 2^{16377361604999} is an apocalyptic number.

16377361604999 is a deficient number, since it is larger than the sum of its proper divisors (162152095201).

16377361604999 is a wasteful number, since it uses less digits than its factorization.

16377361604999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162152095200.

The product of its (nonzero) digits is 277766496, while the sum is 71.

The spelling of 16377361604999 in words is "sixteen trillion, three hundred seventy-seven billion, three hundred sixty-one million, six hundred four thousand, nine hundred ninety-nine".