18116101 has 8 divisors (see below), whose sum is σ = 20191680. Its totient is φ = 16152768.

The previous prime is 18116099. The next prime is 18116107. The reversal of 18116101 is 10161181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18116101 - 2¹ = 18116099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18116107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27721 + ... + 28366.

It is an arithmetic number, because the mean of its divisors is an integer number (2523960).

Almost surely, 2^18116101 is an apocalyptic number.

It is an amenable number.

18116101 is a deficient number, since it is larger than the sum of its proper divisors (2075579).

18116101 is a wasteful number, since it uses less digits than its factorization.

18116101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56123.

The product of its (nonzero) digits is 48, while the sum is 19.

The square root of 18116101 is about 4256.3013286185. The cubic root of 18116101 is about 262.6363965378.

Adding to 18116101 its reverse (10161181), we get a palindrome (28277282).

The spelling of 18116101 in words is "eighteen million, one hundred sixteen thousand, one hundred one".