18001260270240 has 144 divisors (see below), whose sum is σ = 61401340411488. Its totient is φ = 4431079431168.

The previous prime is 18001260270223. The next prime is 18001260270247. The reversal of 18001260270240 is 4207206210081.

It is not an unprimeable number, because it can be changed into a prime (18001260270247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110873394 + ... + 111035633.

It is an arithmetic number, because the mean of its divisors is an integer number (426398197302).

Almost surely, 2^{18001260270240} is an apocalyptic number.

18001260270240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18001260270240 is an abundant number, since it is smaller than the sum of its proper divisors (43400080141248).

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

18001260270240 is a wasteful number, since it uses less digits than its factorization.

18001260270240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221909071 (or 221909050 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 18001260270240 in words is "eighteen trillion, one billion, two hundred sixty million, two hundred seventy thousand, two hundred forty".