1845817515161 has 8 divisors (see below), whose sum is σ = 1885281249600. Its totient is φ = 1806727844880.

The previous prime is 1845817515151. The next prime is 1845817515197. The reversal of 1845817515161 is 1615157185481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1845817515161 - 2¹⁰ = 1845817514137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1845817515131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93506066 + ... + 93525803.

It is an arithmetic number, because the mean of its divisors is an integer number (235660156200).

Almost surely, 2^{1845817515161} is an apocalyptic number.

It is an amenable number.

1845817515161 is a deficient number, since it is larger than the sum of its proper divisors (39463734439).

1845817515161 is a wasteful number, since it uses less digits than its factorization.

1845817515161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187032079.

The product of its digits is 1344000, while the sum is 53.

The spelling of 1845817515161 in words is "one trillion, eight hundred forty-five billion, eight hundred seventeen million, five hundred fifteen thousand, one hundred sixty-one".