20554108069 has 8 divisors (see below), whose sum is σ = 22969558080. Its totient is φ = 18229807200.

The previous prime is 20554108039. The next prime is 20554108093. The reversal of 20554108069 is 96080145502.

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

It is not a de Polignac number, because 20554108069 - 2¹⁹ = 20553583781 is a prime.

It is a super-2 number, since 2×20554108069² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554108039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22786809 + ... + 22787710.

It is an arithmetic number, because the mean of its divisors is an integer number (2871194760).

Almost surely, 2^20554108069 is an apocalyptic number.

It is an amenable number.

20554108069 is a deficient number, since it is larger than the sum of its proper divisors (2415450011).

20554108069 is a wasteful number, since it uses less digits than its factorization.

20554108069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45574571.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 20554108069 in words is "twenty billion, five hundred fifty-four million, one hundred eight thousand, sixty-nine".