20369223168 has 240 divisors, whose sum is σ = 63651354624. Its totient is φ = 5771243520.

The previous prime is 20369223167. The next prime is 20369223191. The reversal of 20369223168 is 86132296302.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20369223167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9557463 + ... + 9559593.

Almost surely, 2^20369223168 is an apocalyptic number.

20369223168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20369223168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31825677312).

20369223168 is an abundant number, since it is smaller than the sum of its proper divisors (43282131456).

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

20369223168 is a wasteful number, since it uses less digits than its factorization.

20369223168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2270 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 20369223168 in words is "twenty billion, three hundred sixty-nine million, two hundred twenty-three thousand, one hundred sixty-eight".