18020155112595 has 96 divisors (see below), whose sum is σ = 32922064281600. Its totient is φ = 9104891443200.

The previous prime is 18020155112587. The next prime is 18020155112647. The reversal of 18020155112595 is 59521155102081.

18020155112595 is a `hidden beast` number, since 1 + 8 + 0 + 2 + 0 + 1 + 5 + 51 + 1 + 2 + 595 = 666.

It is not a de Polignac number, because 18020155112595 - 2³ = 18020155112587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18020155112595.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32281710 + ... + 32835180.

It is an arithmetic number, because the mean of its divisors is an integer number (342938169600).

Almost surely, 2^{18020155112595} is an apocalyptic number.

18020155112595 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18020155112595 is a deficient number, since it is larger than the sum of its proper divisors (14901909169005).

18020155112595 is a wasteful number, since it uses less digits than its factorization.

18020155112595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553981 (or 553978 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 45.

The spelling of 18020155112595 in words is "eighteen trillion, twenty billion, one hundred fifty-five million, one hundred twelve thousand, five hundred ninety-five".