16551555152 has 60 divisors (see below), whose sum is σ = 35288658048. Its totient is φ = 7514971200.

The previous prime is 16551555151. The next prime is 16551555169. The reversal of 16551555152 is 25155515561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551555151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1914263 + ... + 1922889.

Almost surely, 2^16551555152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16551555152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17644329024).

16551555152 is an abundant number, since it is smaller than the sum of its proper divisors (18737102896).

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

16551555152 is a wasteful number, since it uses less digits than its factorization.

16551555152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9648 (or 9631 counting only the distinct ones).

The product of its digits is 187500, while the sum is 41.

The spelling of 16551555152 in words is "sixteen billion, five hundred fifty-one million, five hundred fifty-five thousand, one hundred fifty-two".