18340518203135 has 8 divisors (see below), whose sum is σ = 22008741271200. Its totient is φ = 14672334944224.

The previous prime is 18340518203123. The next prime is 18340518203177. The reversal of 18340518203135 is 53130281504381.

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 18340518203135 - 2¹⁸ = 18340517940991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8929160 + ... + 10789389.

It is an arithmetic number, because the mean of its divisors is an integer number (2751092658900).

Almost surely, 2^{18340518203135} is an apocalyptic number.

18340518203135 is a deficient number, since it is larger than the sum of its proper divisors (3668223068065).

18340518203135 is a wasteful number, since it uses less digits than its factorization.

18340518203135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19904577.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 18340518203135 in words is "eighteen trillion, three hundred forty billion, five hundred eighteen million, two hundred three thousand, one hundred thirty-five".