20536271570623 has 4 divisors (see below), whose sum is σ = 20536571688328. Its totient is φ = 20535971452920.

The previous prime is 20536271570609. The next prime is 20536271570627. The reversal of 20536271570623 is 32607517263502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20536271570623 - 2¹³ = 20536271562431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20536271570627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149956188 + ... + 150093073.

It is an arithmetic number, because the mean of its divisors is an integer number (5134142922082).

Almost surely, 2^{20536271570623} is an apocalyptic number.

20536271570623 is a deficient number, since it is larger than the sum of its proper divisors (300117705).

20536271570623 is an equidigital number, since it uses as much as digits as its factorization.

20536271570623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300117704.

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 20536271570623 in words is "twenty trillion, five hundred thirty-six billion, two hundred seventy-one million, five hundred seventy thousand, six hundred twenty-three".