20369161152 has 112 divisors (see below), whose sum is σ = 59918620320. Its totient is φ = 6785519616.

The previous prime is 20369161097. The next prime is 20369161159. The reversal of 20369161152 is 25116196302.

20369161152 is a `hidden beast` number, since 2 + 0 + 36 + 9 + 1 + 611 + 5 + 2 = 666.

It is a super-2 number, since 2×20369161152² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20369161159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4174138 + ... + 4179014.

Almost surely, 2^20369161152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20369161152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29959310160).

20369161152 is an abundant number, since it is smaller than the sum of its proper divisors (39549459168).

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

20369161152 is a wasteful number, since it uses less digits than its factorization.

20369161152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7315 (or 7299 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 20369161152 in words is "twenty billion, three hundred sixty-nine million, one hundred sixty-one thousand, one hundred fifty-two".