16555113 has 6 divisors (see below), whose sum is σ = 23912954. Its totient is φ = 11036736.

The previous prime is 16555111. The next prime is 16555151. The reversal of 16555113 is 31155561.

16555113 is a `hidden beast` number, since 1 + 655 + 5 + 1 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11370384 + 5184729 = 3372^2 + 2277^2 .

It is not a de Polignac number, because 16555113 - 2¹ = 16555111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16555111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 919720 + ... + 919737.

Almost surely, 2^16555113 is an apocalyptic number.

It is an amenable number.

16555113 is a deficient number, since it is larger than the sum of its proper divisors (7357841).

16555113 is a wasteful number, since it uses less digits than its factorization.

16555113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839463 (or 1839460 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 16555113 is about 4068.7974882021. The cubic root of 16555113 is about 254.8653037190.

It can be divided in two parts, 165 and 55113, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 16555113 in words is "sixteen million, five hundred fifty-five thousand, one hundred thirteen".