18282090552081 has 16 divisors (see below), whose sum is σ = 25216790165760. Its totient is φ = 11767729438080.

The previous prime is 18282090552071. The next prime is 18282090552091. The reversal of 18282090552081 is 18025509028281.

It is an interprime number because it is at equal distance from previous prime (18282090552071) and next prime (18282090552091).

It is not a de Polignac number, because 18282090552081 - 2²⁵ = 18282056997649 is a prime.

It is a super-2 number, since 2×18282090552081² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18282090552001) 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, 30689421 + ... + 31279461.

It is an arithmetic number, because the mean of its divisors is an integer number (1576049385360).

Almost surely, 2^{18282090552081} is an apocalyptic number.

It is an amenable number.

18282090552081 is a deficient number, since it is larger than the sum of its proper divisors (6934699613679).

18282090552081 is a wasteful number, since it uses less digits than its factorization.

18282090552081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946216.

The product of its (nonzero) digits is 921600, while the sum is 51.

The spelling of 18282090552081 in words is "eighteen trillion, two hundred eighty-two billion, ninety million, five hundred fifty-two thousand, eighty-one".