16808949454 has 32 divisors (see below), whose sum is σ = 27659571840. Its totient is φ = 7597735200.

The previous prime is 16808949449. The next prime is 16808949467. The reversal of 16808949454 is 45494980861.

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, 5656189 + ... + 5659159.

It is an arithmetic number, because the mean of its divisors is an integer number (864361620).

Almost surely, 2^16808949454 is an apocalyptic number.

16808949454 is a deficient number, since it is larger than the sum of its proper divisors (10850622386).

16808949454 is a wasteful number, since it uses less digits than its factorization.

16808949454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336.

The product of its (nonzero) digits is 9953280, while the sum is 58.

The spelling of 16808949454 in words is "sixteen billion, eight hundred eight million, nine hundred forty-nine thousand, four hundred fifty-four".