20466075457627 has 4 divisors (see below), whose sum is σ = 20466086879520. Its totient is φ = 20466064035736.

The previous prime is 20466075457609. The next prime is 20466075457637. The reversal of 20466075457627 is 72675457066402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20466075457627 - 2²⁷ = 20465941239899 is a prime.

It is a super-2 number, since 2×20466075457627² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20466075457637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372803 + ... + 6823660.

It is an arithmetic number, because the mean of its divisors is an integer number (5116521719880).

Almost surely, 2^{20466075457627} is an apocalyptic number.

20466075457627 is a deficient number, since it is larger than the sum of its proper divisors (11421893).

20466075457627 is an equidigital number, since it uses as much as digits as its factorization.

20466075457627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11421892.

The product of its (nonzero) digits is 118540800, while the sum is 61.

The spelling of 20466075457627 in words is "twenty trillion, four hundred sixty-six billion, seventy-five million, four hundred fifty-seven thousand, six hundred twenty-seven".