2666795121 has 12 divisors (see below), whose sum is σ = 3859164660. Its totient is φ = 1774573920.

The previous prime is 2666795077. The next prime is 2666795123. The reversal of 2666795121 is 1215976662.

It can be written as a sum of positive squares in 2 ways, for example, as 451775025 + 2215020096 = 21255^2 + 47064^2 .

It is not a de Polignac number, because 2666795121 - 2²² = 2662600817 is a prime.

It is a super-2 number, since 2×2666795121² = 14223592434778809282, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2666795123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268986 + ... + 278723.

It is an arithmetic number, because the mean of its divisors is an integer number (321597055).

Almost surely, 2^2666795121 is an apocalyptic number.

It is an amenable number.

2666795121 is a deficient number, since it is larger than the sum of its proper divisors (1192369539).

2666795121 is a wasteful number, since it uses less digits than its factorization.

2666795121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548256 (or 548253 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 2666795121 is about 51641.0216881889. The cubic root of 2666795121 is about 1386.7448146588.

The spelling of 2666795121 in words is "two billion, six hundred sixty-six million, seven hundred ninety-five thousand, one hundred twenty-one".