2161066041632 has 24 divisors (see below), whose sum is σ = 4254754566636. Its totient is φ = 1080493453312.

The previous prime is 2161066041619. The next prime is 2161066041683. The reversal of 2161066041632 is 2361406601612.

It can be written as a sum of positive squares in 2 ways, for example, as 1210448841616 + 950617200016 = 1100204^2 + 974996^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 338933 + ... + 2106420.

Almost surely, 2^{2161066041632} is an apocalyptic number.

It is an amenable number.

2161066041632 is a deficient number, since it is larger than the sum of its proper divisors (2093688525004).

2161066041632 is a wasteful number, since it uses less digits than its factorization.

2161066041632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472980 (or 2472972 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 2161066041632 in words is "two trillion, one hundred sixty-one billion, sixty-six million, forty-one thousand, six hundred thirty-two".