2016854403291 has 128 divisors (see below), whose sum is σ = 3825991680000. Its totient is φ = 1021406682240.

The previous prime is 2016854403259. The next prime is 2016854403293. The reversal of 2016854403291 is 1923044586102.

2016854403291 is a `hidden beast` number, since 2 + 0 + 16 + 8 + 544 + 0 + 3 + 2 + 91 = 666.

It is not a de Polignac number, because 2016854403291 - 2⁵ = 2016854403259 is a prime.

It is a super-4 number, since 4×2016854403291⁴ (a number of 50 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2016854403293) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9568960 + ... + 9777458.

It is an arithmetic number, because the mean of its divisors is an integer number (29890560000).

Almost surely, 2^{2016854403291} is an apocalyptic number.

2016854403291 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2016854403291 is a deficient number, since it is larger than the sum of its proper divisors (1809137276709).

2016854403291 is a wasteful number, since it uses less digits than its factorization.

2016854403291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208686 (or 208680 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

Adding to 2016854403291 its reverse (1923044586102), we get a palindrome (3939898989393).

The spelling of 2016854403291 in words is "two trillion, sixteen billion, eight hundred fifty-four million, four hundred three thousand, two hundred ninety-one".