20108998080 has 336 divisors, whose sum is σ = 77093246880. Its totient is φ = 4781113344.

The previous prime is 20108998057. The next prime is 20108998087. The reversal of 20108998080 is 8089980102.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20108998087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 919432 + ... + 941048.

Almost surely, 2^20108998080 is an apocalyptic number.

20108998080 is a gapful number since it is divisible by the number (20) 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 20108998080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38546623440).

20108998080 is an abundant number, since it is smaller than the sum of its proper divisors (56984248800).

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

20108998080 is a wasteful number, since it uses less digits than its factorization.

20108998080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21676 (or 21663 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 20108998080 in words is "twenty billion, one hundred eight million, nine hundred ninety-eight thousand, eighty".