16999283497491 has 24 divisors (see below), whose sum is σ = 24571595752704. Its totient is φ = 11324976739440.

The previous prime is 16999283497433. The next prime is 16999283497507. The reversal of 16999283497491 is 19479438299961.

16999283497491 is a `hidden beast` number, since 1 + 6 + 9 + 9 + 9 + 2 + 8 + 34 + 97 + 491 = 666.

16999283497491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16999283497491 - 2⁷ = 16999283497363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16999283497491.

It is not an unprimeable number, because it can be changed into a prime (16999283497291) 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, 112811500 + ... + 112962086.

It is an arithmetic number, because the mean of its divisors is an integer number (1023816489696).

Almost surely, 2^{16999283497491} is an apocalyptic number.

16999283497491 is a deficient number, since it is larger than the sum of its proper divisors (7572312255213).

16999283497491 is a wasteful number, since it uses less digits than its factorization.

16999283497491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159231 (or 159228 counting only the distinct ones).

The product of its digits is 1904684544, while the sum is 81.

The spelling of 16999283497491 in words is "sixteen trillion, nine hundred ninety-nine billion, two hundred eighty-three million, four hundred ninety-seven thousand, four hundred ninety-one".