20044465081 has 8 divisors (see below), whose sum is σ = 20188523264. Its totient is φ = 19900773360.

The previous prime is 20044465073. The next prime is 20044465097. The reversal of 20044465081 is 18056444002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20044465081 - 2³ = 20044465073 is a prime.

It is a super-2 number, since 2×20044465081² (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 (20044465681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18646 + ... + 201088.

It is an arithmetic number, because the mean of its divisors is an integer number (2523565408).

Almost surely, 2^20044465081 is an apocalyptic number.

It is an amenable number.

20044465081 is a deficient number, since it is larger than the sum of its proper divisors (144058183).

20044465081 is a wasteful number, since it uses less digits than its factorization.

20044465081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183231.

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 20044465081 in words is "twenty billion, forty-four million, four hundred sixty-five thousand, eighty-one".