18201000091101 has 16 divisors (see below), whose sum is σ = 24311129166720. Its totient is φ = 12112439252480.

The previous prime is 18201000091063. The next prime is 18201000091117. The reversal of 18201000091101 is 10119000010281.

It is a cyclic number.

It is not a de Polignac number, because 18201000091101 - 2²⁹ = 18200463220189 is a prime.

It is a super-2 number, since 2×18201000091101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18201000091181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19393441 + ... + 20310281.

It is an arithmetic number, because the mean of its divisors is an integer number (1519445572920).

Almost surely, 2^{18201000091101} is an apocalyptic number.

It is an amenable number.

18201000091101 is a deficient number, since it is larger than the sum of its proper divisors (6110129075619).

18201000091101 is a wasteful number, since it uses less digits than its factorization.

18201000091101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928596.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 18201000091101 in words is "eighteen trillion, two hundred one billion, ninety-one thousand, one hundred one".