20169762048 has 504 divisors, whose sum is σ = 65199740928. Its totient is φ = 6207860736.

The previous prime is 20169762029. The next prime is 20169762059. The reversal of 20169762048 is 84026796102.

It is a happy number.

20169762048 is a `hidden beast` number, since 2 + 0 + 16 + 9 + 7 + 620 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20169761994 and 20169762012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 158816961 + ... + 158817087.

Almost surely, 2^20169762048 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 20169762048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32599870464).

20169762048 is an abundant number, since it is smaller than the sum of its proper divisors (45029978880).

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

20169762048 is an equidigital number, since it uses as much as digits as its factorization.

20169762048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 20169762048 in words is "twenty billion, one hundred sixty-nine million, seven hundred sixty-two thousand, forty-eight".