20366322680 has 64 divisors (see below), whose sum is σ = 52621142400. Its totient is φ = 7016146560.

The previous prime is 20366322679. The next prime is 20366322689. The reversal of 20366322680 is 8622366302.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366322689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209722 + ... + 1226441.

It is an arithmetic number, because the mean of its divisors is an integer number (822205350).

Almost surely, 2^20366322680 is an apocalyptic number.

20366322680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20366322680 is an abundant number, since it is smaller than the sum of its proper divisors (32254819720).

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

20366322680 is a wasteful number, since it uses less digits than its factorization.

20366322680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436204 (or 2436200 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

Adding to 20366322680 its reverse (8622366302), we get a palindrome (28988688982).

The spelling of 20366322680 in words is "twenty billion, three hundred sixty-six million, three hundred twenty-two thousand, six hundred eighty".