18112178014091 has 16 divisors (see below), whose sum is σ = 22048498515456. Its totient is φ = 14524010894976.

The previous prime is 18112178014087. The next prime is 18112178014109. The reversal of 18112178014091 is 19041087121181.

It is a cyclic number.

It is not a de Polignac number, because 18112178014091 - 2² = 18112178014087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18112178014001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455678261 + ... + 455718006.

It is an arithmetic number, because the mean of its divisors is an integer number (1378031157216).

Almost surely, 2^{18112178014091} is an apocalyptic number.

18112178014091 is a deficient number, since it is larger than the sum of its proper divisors (3936320501365).

18112178014091 is a wasteful number, since it uses less digits than its factorization.

18112178014091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911396458.

The product of its (nonzero) digits is 32256, while the sum is 44.

The spelling of 18112178014091 in words is "eighteen trillion, one hundred twelve billion, one hundred seventy-eight million, fourteen thousand, ninety-one".