20482806081 has 16 divisors (see below), whose sum is σ = 27653079104. Its totient is φ = 13484937024.

The previous prime is 20482806073. The next prime is 20482806083. The reversal of 20482806081 is 18060828402.

It is not a de Polignac number, because 20482806081 - 2³ = 20482806073 is a prime.

It is a super-2 number, since 2×20482806081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20482806083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56626 + ... + 210171.

It is an arithmetic number, because the mean of its divisors is an integer number (1728317444).

Almost surely, 2^20482806081 is an apocalyptic number.

It is an amenable number.

20482806081 is a deficient number, since it is larger than the sum of its proper divisors (7170273023).

20482806081 is a wasteful number, since it uses less digits than its factorization.

20482806081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267120.

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 20482806081 in words is "twenty billion, four hundred eighty-two million, eight hundred six thousand, eighty-one".