20030316644164 has 6 divisors (see below), whose sum is σ = 35053054127294. Its totient is φ = 10015158322080.

The previous prime is 20030316644161. The next prime is 20030316644207. The reversal of 20030316644164 is 46144661303002.

It can be written as a sum of positive squares in only one way, i.e., 14995714104900 + 5034602539264 = 3872430^2 + 2243792^2 .

It is not an unprimeable number, because it can be changed into a prime (20030316644161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2503789580517 + ... + 2503789580524.

Almost surely, 2^{20030316644164} is an apocalyptic number.

It is an amenable number.

20030316644164 is a deficient number, since it is larger than the sum of its proper divisors (15022737483130).

20030316644164 is a wasteful number, since it uses less digits than its factorization.

20030316644164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007579161045 (or 5007579161043 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 20030316644164 its reverse (46144661303002), we get a palindrome (66174977947166).

The spelling of 20030316644164 in words is "twenty trillion, thirty billion, three hundred sixteen million, six hundred forty-four thousand, one hundred sixty-four".