20315303643066 has 8 divisors (see below), whose sum is σ = 40630607286144. Its totient is φ = 6771767881020.

The previous prime is 20315303643053. The next prime is 20315303643067. The reversal of 20315303643066 is 66034630351302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20315303643066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20315303643067) 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, 1692941970250 + ... + 1692941970261.

It is an arithmetic number, because the mean of its divisors is an integer number (5078825910768).

Almost surely, 2^{20315303643066} is an apocalyptic number.

20315303643066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20315303643066 is a wasteful number, since it uses less digits than its factorization.

20315303643066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385883940516.

The product of its (nonzero) digits is 699840, while the sum is 42.

Adding to 20315303643066 its reverse (66034630351302), we get a palindrome (86349933994368).

The spelling of 20315303643066 in words is "twenty trillion, three hundred fifteen billion, three hundred three million, six hundred forty-three thousand, sixty-six".