18018965361124 has 96 divisors (see below), whose sum is σ = 39108438835200. Its totient is φ = 7073747625600.

The previous prime is 18018965361121. The next prime is 18018965361127. The reversal of 18018965361124 is 42116356981081.

It is an interprime number because it is at equal distance from previous prime (18018965361121) and next prime (18018965361127).

It is a super-2 number, since 2×18018965361124² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18018965361121) 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, 30921049 + ... + 31498399.

It is an arithmetic number, because the mean of its divisors is an integer number (407379571200).

Almost surely, 2^{18018965361124} is an apocalyptic number.

18018965361124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18018965361124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19554219417600).

18018965361124 is an abundant number, since it is smaller than the sum of its proper divisors (21089473474076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18018965361124 is a wasteful number, since it uses less digits than its factorization.

18018965361124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578033 (or 578031 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 18018965361124 in words is "eighteen trillion, eighteen billion, nine hundred sixty-five million, three hundred sixty-one thousand, one hundred twenty-four".