16500000164999 has 24 divisors (see below), whose sum is σ = 18490244984640. Its totient is φ = 14699776570752.

The previous prime is 16500000164953. The next prime is 16500000165031. The reversal of 16500000164999 is 99946100000561.

It is not a de Polignac number, because 16500000164999 - 2¹⁶ = 16500000099463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16500000164929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11801297 + ... + 13125189.

It is an arithmetic number, because the mean of its divisors is an integer number (770426874360).

Almost surely, 2^{16500000164999} is an apocalyptic number.

16500000164999 is a deficient number, since it is larger than the sum of its proper divisors (1990244819641).

16500000164999 is a wasteful number, since it uses less digits than its factorization.

16500000164999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326491 (or 1326478 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 16500000164999 in words is "sixteen trillion, five hundred billion, one hundred sixty-four thousand, nine hundred ninety-nine".