16533895854 has 40 divisors (see below), whose sum is σ = 38576828520. Its totient is φ = 4723966128.

The previous prime is 16533895843. The next prime is 16533895891. The reversal of 16533895854 is 45859833561.

It is a super-2 number, since 2×16533895854² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16533895794 and 16533895803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 559449 + ... + 588260.

It is an arithmetic number, because the mean of its divisors is an integer number (964420713).

Almost surely, 2^16533895854 is an apocalyptic number.

16533895854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16533895854 is an abundant number, since it is smaller than the sum of its proper divisors (22042932666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16533895854 is an equidigital number, since it uses as much as digits as its factorization.

16533895854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147742 (or 1147721 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 57.

The spelling of 16533895854 in words is "sixteen billion, five hundred thirty-three million, eight hundred ninety-five thousand, eight hundred fifty-four".