20622161363 has 4 divisors (see below), whose sum is σ = 20623176000. Its totient is φ = 20621146728.

The previous prime is 20622161323. The next prime is 20622161387. The reversal of 20622161363 is 36316122602.

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 20622161363 - 2⁸ = 20622161107 is a prime.

It is a super-2 number, since 2×20622161363² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20622161303) 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, 476195 + ... + 517692.

It is an arithmetic number, because the mean of its divisors is an integer number (5155794000).

Almost surely, 2^20622161363 is an apocalyptic number.

20622161363 is a deficient number, since it is larger than the sum of its proper divisors (1014637).

20622161363 is an equidigital number, since it uses as much as digits as its factorization.

20622161363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014636.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 20622161363 its reverse (36316122602), we get a palindrome (56938283965).

The spelling of 20622161363 in words is "twenty billion, six hundred twenty-two million, one hundred sixty-one thousand, three hundred sixty-three".