16801552806 has 32 divisors (see below), whose sum is σ = 33977294208. Its totient is φ = 5538338880.

The previous prime is 16801552799. The next prime is 16801552837. The reversal of 16801552806 is 60825510861.

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, 343666 + ... + 389498.

It is an arithmetic number, because the mean of its divisors is an integer number (1061790444).

Almost surely, 2^16801552806 is an apocalyptic number.

16801552806 is an abundant number, since it is smaller than the sum of its proper divisors (17175741402).

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

16801552806 is a wasteful number, since it uses less digits than its factorization.

16801552806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46516.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 16801552806 in words is "sixteen billion, eight hundred one million, five hundred fifty-two thousand, eight hundred six".