20795396660001 has 24 divisors (see below), whose sum is σ = 30608599021416. Its totient is φ = 13600219127040.

The previous prime is 20795396659997. The next prime is 20795396660081. The reversal of 20795396660001 is 10006669359702.

It can be written as a sum of positive squares in 4 ways, for example, as 2841736205025 + 17953660454976 = 1685745^2 + 4237176^2 .

It is not a de Polignac number, because 20795396660001 - 2² = 20795396659997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20795396660001.

It is not an unprimeable number, because it can be changed into a prime (20795396660081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 723631 + ... + 6489563.

It is an arithmetic number, because the mean of its divisors is an integer number (1275358292559).

Almost surely, 2^{20795396660001} is an apocalyptic number.

It is an amenable number.

20795396660001 is a deficient number, since it is larger than the sum of its proper divisors (9813202361415).

20795396660001 is a wasteful number, since it uses less digits than its factorization.

20795396660001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773553 (or 5773550 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 20795396660001 in words is "twenty trillion, seven hundred ninety-five billion, three hundred ninety-six million, six hundred sixty thousand, one".