16801821054 has 12 divisors (see below), whose sum is σ = 36403945656. Its totient is φ = 5600607012.

The previous prime is 16801821019. The next prime is 16801821059. The reversal of 16801821054 is 45012810861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16801821059) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 466717234 + ... + 466717269.

It is an arithmetic number, because the mean of its divisors is an integer number (3033662138).

Almost surely, 2^16801821054 is an apocalyptic number.

16801821054 is an abundant number, since it is smaller than the sum of its proper divisors (19602124602).

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

16801821054 is a wasteful number, since it uses less digits than its factorization.

16801821054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933434511 (or 933434508 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 16801821054 in words is "sixteen billion, eight hundred one million, eight hundred twenty-one thousand, fifty-four".