18124266242181 has 32 divisors (see below), whose sum is σ = 27509387793408. Its totient is φ = 10506584183040.

The previous prime is 18124266242101. The next prime is 18124266242207.

18124266242181 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 18124266242181 - 2²² = 18124262047877 is a prime.

It is a super-2 number, since 2×18124266242181² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18124266242181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18124266242101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36784605 + ... + 37274061.

It is an arithmetic number, because the mean of its divisors is an integer number (859668368544).

Almost surely, 2^{18124266242181} is an apocalyptic number.

18124266242181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18124266242181 is a deficient number, since it is larger than the sum of its proper divisors (9385121551227).

18124266242181 is a wasteful number, since it uses less digits than its factorization.

18124266242181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538281.

The product of its digits is 589824, while the sum is 48.

The spelling of 18124266242181 in words is "eighteen trillion, one hundred twenty-four billion, two hundred sixty-six million, two hundred forty-two thousand, one hundred eighty-one".