16818548340 has 48 divisors (see below), whose sum is σ = 51373022400. Its totient is φ = 4077223680.

The previous prime is 16818548321. The next prime is 16818548371. The reversal of 16818548340 is 4384581861.

It is a self number, because there is not a number n which added to its sum of digits gives 16818548340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12740665 + ... + 12741984.

It is an arithmetic number, because the mean of its divisors is an integer number (1070271300).

Almost surely, 2^16818548340 is an apocalyptic number.

16818548340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16818548340 is an abundant number, since it is smaller than the sum of its proper divisors (34554474060).

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

16818548340 is a wasteful number, since it uses less digits than its factorization.

16818548340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25482672 (or 25482670 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 16818548340 in words is "sixteen billion, eight hundred eighteen million, five hundred forty-eight thousand, three hundred forty".