20054163065 has 8 divisors (see below), whose sum is σ = 24065778048. Its totient is φ = 16042808880.

The previous prime is 20054163049. The next prime is 20054163113. The reversal of 20054163065 is 56036145002.

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

It is not a de Polignac number, because 20054163065 - 2⁴ = 20054163049 is a prime.

It is a super-2 number, since 2×20054163065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 208214 + ... + 288896.

It is an arithmetic number, because the mean of its divisors is an integer number (3008222256).

Almost surely, 2^20054163065 is an apocalyptic number.

It is an amenable number.

20054163065 is a deficient number, since it is larger than the sum of its proper divisors (4011614983).

20054163065 is an equidigital number, since it uses as much as digits as its factorization.

20054163065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130399.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20054163065 in words is "twenty billion, fifty-four million, one hundred sixty-three thousand, sixty-five".