20498329152 has 504 divisors, whose sum is σ = 72894529344. Its totient is φ = 5690539008.

The previous prime is 20498329141. The next prime is 20498329193. The reversal of 20498329152 is 25192389402.

20498329152 is a `hidden beast` number, since 2 + 0 + 498 + 3 + 2 + 9 + 152 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a junction number, because it is equal to n+sod(n) for n = 20498329098 and 20498329107.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28195413 + ... + 28196139.

Almost surely, 2^20498329152 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 20498329152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36447264672).

20498329152 is an abundant number, since it is smaller than the sum of its proper divisors (52396200192).

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

20498329152 is an equidigital number, since it uses as much as digits as its factorization.

20498329152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 20498329152 in words is "twenty billion, four hundred ninety-eight million, three hundred twenty-nine thousand, one hundred fifty-two".