18616101 has 16 divisors (see below), whose sum is σ = 28454400. Its totient is φ = 10605168.

The previous prime is 18616063. The next prime is 18616109. The reversal of 18616101 is 10161681.

It is not a de Polignac number, because 18616101 - 2¹³ = 18607909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18616109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6790 + ... + 9128.

It is an arithmetic number, because the mean of its divisors is an integer number (1778400).

Almost surely, 2^18616101 is an apocalyptic number.

It is an amenable number.

18616101 is a deficient number, since it is larger than the sum of its proper divisors (9838299).

18616101 is a wasteful number, since it uses less digits than its factorization.

18616101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 18616101 is about 4314.6379917671. The cubic root of 18616101 is about 265.0307357254.

Adding to 18616101 its reverse (10161681), we get a palindrome (28777782).

The spelling of 18616101 in words is "eighteen million, six hundred sixteen thousand, one hundred one".