20098067808 has 384 divisors, whose sum is σ = 68496261120. Its totient is φ = 5017282560.

The previous prime is 20098067807. The next prime is 20098067819. The reversal of 20098067808 is 80876089002.

It is a happy number.

It is a super-2 number, since 2×20098067808² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20098067807) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12727563 + ... + 12729141.

It is an arithmetic number, because the mean of its divisors is an integer number (178375680).

Almost surely, 2^20098067808 is an apocalyptic number.

20098067808 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 20098067808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34248130560).

20098067808 is an abundant number, since it is smaller than the sum of its proper divisors (48398193312).

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

20098067808 is a wasteful number, since it uses less digits than its factorization.

20098067808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 20098067808 in words is "twenty billion, ninety-eight million, sixty-seven thousand, eight hundred eight".