20360435166513 has 24 divisors (see below), whose sum is σ = 31671960930792. Its totient is φ = 12529430166528.

The previous prime is 20360435166451. The next prime is 20360435166517. The reversal of 20360435166513 is 31566153406302.

20360435166513 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 0 + 435 + 166 + 51 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3003646008609 + 17356789157904 = 1733103^2 + 4166148^2 .

It is not a de Polignac number, because 20360435166513 - 2⁸ = 20360435166257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20360435166517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28647745 + ... + 29349857.

It is an arithmetic number, because the mean of its divisors is an integer number (1319665038783).

Almost surely, 2^{20360435166513} is an apocalyptic number.

It is an amenable number.

20360435166513 is a deficient number, since it is larger than the sum of its proper divisors (11311525764279).

20360435166513 is a wasteful number, since it uses less digits than its factorization.

20360435166513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949985 (or 949982 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 20360435166513 in words is "twenty trillion, three hundred sixty billion, four hundred thirty-five million, one hundred sixty-six thousand, five hundred thirteen".