18021202599045 has 8 divisors (see below), whose sum is σ = 28833924158496. Its totient is φ = 9611308052816.

The previous prime is 18021202599041. The next prime is 18021202599151. The reversal of 18021202599045 is 54099520212081.

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 18021202599045 - 2² = 18021202599041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18021202598985 and 18021202599003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18021202599041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600706753287 + ... + 600706753316.

It is an arithmetic number, because the mean of its divisors is an integer number (3604240519812).

Almost surely, 2^{18021202599045} is an apocalyptic number.

18021202599045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18021202599045 is a deficient number, since it is larger than the sum of its proper divisors (10812721559451).

18021202599045 is a wasteful number, since it uses less digits than its factorization.

18021202599045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201413506611.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 18021202599045 in words is "eighteen trillion, twenty-one billion, two hundred two million, five hundred ninety-nine thousand, forty-five".