18302566141 has 4 divisors (see below), whose sum is σ = 18307211872. Its totient is φ = 18297920412.

The previous prime is 18302566099. The next prime is 18302566171. The reversal of 18302566141 is 14166520381.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-18302566141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18302566141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18302566171) 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, 2316951 + ... + 2324836.

It is an arithmetic number, because the mean of its divisors is an integer number (4576802968).

Almost surely, 2^18302566141 is an apocalyptic number.

It is an amenable number.

18302566141 is a deficient number, since it is larger than the sum of its proper divisors (4645731).

18302566141 is an equidigital number, since it uses as much as digits as its factorization.

18302566141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4645730.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 18302566141 in words is "eighteen billion, three hundred two million, five hundred sixty-six thousand, one hundred forty-one".