618018249161 has 16 divisors (see below), whose sum is σ = 650342347200. Its totient is φ = 586433870400.

The previous prime is 618018249097. The next prime is 618018249179. The reversal of 618018249161 is 161942810816.

It is not a de Polignac number, because 618018249161 - 2⁶ = 618018249097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618018249661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6490466 + ... + 6584996.

It is an arithmetic number, because the mean of its divisors is an integer number (40646396700).

Almost surely, 2^618018249161 is an apocalyptic number.

It is an amenable number.

618018249161 is a deficient number, since it is larger than the sum of its proper divisors (32324098039).

618018249161 is a wasteful number, since it uses less digits than its factorization.

618018249161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98440.

The product of its (nonzero) digits is 165888, while the sum is 47.

The spelling of 618018249161 in words is "six hundred eighteen billion, eighteen million, two hundred forty-nine thousand, one hundred sixty-one".