18162635145 has 16 divisors (see below), whose sum is σ = 29069349120. Its totient is φ = 9683694464.

The previous prime is 18162635131. The next prime is 18162635159. The reversal of 18162635145 is 54153626181.

It is an interprime number because it is at equal distance from previous prime (18162635131) and next prime (18162635159).

It is a cyclic number.

It is not a de Polignac number, because 18162635145 - 2⁶ = 18162635081 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18162635097 and 18162635106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140529 + ... + 236798.

It is an arithmetic number, because the mean of its divisors is an integer number (1816834320).

Almost surely, 2^18162635145 is an apocalyptic number.

18162635145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18162635145 is a deficient number, since it is larger than the sum of its proper divisors (10906713975).

18162635145 is a wasteful number, since it uses less digits than its factorization.

18162635145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380544.

The product of its digits is 172800, while the sum is 42.

The spelling of 18162635145 in words is "eighteen billion, one hundred sixty-two million, six hundred thirty-five thousand, one hundred forty-five".