2161075341466 has 8 divisors (see below), whose sum is σ = 3258408935124. Its totient is φ = 1074939029760.

The previous prime is 2161075341463. The next prime is 2161075341497. The reversal of 2161075341466 is 6641435701612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2132829497241 + 28245844225 = 1460421^2 + 168065^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2161075341463) 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 3 ways as a sum of consecutive naturals, for example, 2799320005 + ... + 2799320776.

Almost surely, 2^{2161075341466} is an apocalyptic number.

2161075341466 is a deficient number, since it is larger than the sum of its proper divisors (1097333593658).

2161075341466 is a wasteful number, since it uses less digits than its factorization.

2161075341466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598640976.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 2161075341466 in words is "two trillion, one hundred sixty-one billion, seventy-five million, three hundred forty-one thousand, four hundred sixty-six".