20414478608 has 80 divisors (see below), whose sum is σ = 41644715520. Its totient is φ = 9681638400.

The previous prime is 20414478593. The next prime is 20414478613. The reversal of 20414478608 is 80687441402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12319316 + ... + 12320972.

It is an arithmetic number, because the mean of its divisors is an integer number (520558944).

Almost surely, 2^20414478608 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 20414478608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20822357760).

20414478608 is an abundant number, since it is smaller than the sum of its proper divisors (21230236912).

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

20414478608 is a wasteful number, since it uses less digits than its factorization.

20414478608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176 (or 2170 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 20414478608 in words is "twenty billion, four hundred fourteen million, four hundred seventy-eight thousand, six hundred eight".