18116594840653 has 4 divisors (see below), whose sum is σ = 18116610078528. Its totient is φ = 18116579602780.

The previous prime is 18116594840567. The next prime is 18116594840657. The reversal of 18116594840653 is 35604849561181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18116594840653 - 2¹³ = 18116594832461 is a prime.

It is a super-2 number, since 2×18116594840653² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18116594840591 and 18116594840600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18116594840657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5669251 + ... + 8268832.

It is an arithmetic number, because the mean of its divisors is an integer number (4529152519632).

Almost surely, 2^{18116594840653} is an apocalyptic number.

It is an amenable number.

18116594840653 is a deficient number, since it is larger than the sum of its proper divisors (15237875).

18116594840653 is a wasteful number, since it uses less digits than its factorization.

18116594840653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15237874.

The product of its (nonzero) digits is 24883200, while the sum is 61.

The spelling of 18116594840653 in words is "eighteen trillion, one hundred sixteen billion, five hundred ninety-four million, eight hundred forty thousand, six hundred fifty-three".