20364352717165 has 16 divisors (see below), whose sum is σ = 24451883650800. Its totient is φ = 16281711452160.

The previous prime is 20364352717127. The next prime is 20364352717201. The reversal of 20364352717165 is 56171725346302.

It can be written as a sum of positive squares in 8 ways, for example, as 196187870761 + 20168164846404 = 442931^2 + 4490898^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20364352717165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57663925 + ... + 58016005.

It is an arithmetic number, because the mean of its divisors is an integer number (1528242728175).

Almost surely, 2^{20364352717165} is an apocalyptic number.

It is an amenable number.

20364352717165 is a deficient number, since it is larger than the sum of its proper divisors (4087530933635).

20364352717165 is a wasteful number, since it uses less digits than its factorization.

20364352717165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358992.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 20364352717165 in words is "twenty trillion, three hundred sixty-four billion, three hundred fifty-two million, seven hundred seventeen thousand, one hundred sixty-five".