18230057565 has 16 divisors (see below), whose sum is σ = 29263109568. Its totient is φ = 9691024896.

The previous prime is 18230057557. The next prime is 18230057567. The reversal of 18230057565 is 56575003281.

It is not a de Polignac number, because 18230057565 - 2³ = 18230057557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18230057567) 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, 1974772 + ... + 1983981.

It is an arithmetic number, because the mean of its divisors is an integer number (1828944348).

Almost surely, 2^18230057565 is an apocalyptic number.

18230057565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18230057565 is a deficient number, since it is larger than the sum of its proper divisors (11033052003).

18230057565 is a wasteful number, since it uses less digits than its factorization.

18230057565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959068.

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 18230057565 in words is "eighteen billion, two hundred thirty million, fifty-seven thousand, five hundred sixty-five".