2165613436144 has 10 divisors (see below), whose sum is σ = 4195876032560. Its totient is φ = 1082806718064.

The previous prime is 2165613436123. The next prime is 2165613436157. The reversal of 2165613436144 is 4416343165612.

It is a junction number, because it is equal to n+sod(n) for n = 2165613436094 and 2165613436103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67675419864 + ... + 67675419895.

It is an arithmetic number, because the mean of its divisors is an integer number (419587603256).

Almost surely, 2^{2165613436144} is an apocalyptic number.

It is an amenable number.

2165613436144 is a deficient number, since it is larger than the sum of its proper divisors (2030262596416).

2165613436144 is a wasteful number, since it uses less digits than its factorization.

2165613436144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135350839767 (or 135350839761 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The spelling of 2165613436144 in words is "two trillion, one hundred sixty-five billion, six hundred thirteen million, four hundred thirty-six thousand, one hundred forty-four".