20366216722627 has 4 divisors (see below), whose sum is σ = 21068500057920. Its totient is φ = 19663933387336.

The previous prime is 20366216722609. The next prime is 20366216722667. The reversal of 20366216722627 is 72622761266302.

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 20366216722627 - 2²³ = 20366208334019 is a prime.

It is a super-2 number, since 2×20366216722627² (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 (20366216722667) 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, 351141667603 + ... + 351141667660.

It is an arithmetic number, because the mean of its divisors is an integer number (5267125014480).

Almost surely, 2^{20366216722627} is an apocalyptic number.

20366216722627 is a deficient number, since it is larger than the sum of its proper divisors (702283335293).

20366216722627 is an equidigital number, since it uses as much as digits as its factorization.

20366216722627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702283335292.

The product of its (nonzero) digits is 6096384, while the sum is 52.

Adding to 20366216722627 its reverse (72622761266302), we get a palindrome (92988977988929).

The spelling of 20366216722627 in words is "twenty trillion, three hundred sixty-six billion, two hundred sixteen million, seven hundred twenty-two thousand, six hundred twenty-seven".