20807040558 has 8 divisors (see below), whose sum is σ = 41614081128. Its totient is φ = 6935680184.

The previous prime is 20807040451. The next prime is 20807040559. The reversal of 20807040558 is 85504070802.

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

20807040558 is an admirable number.

It is a super-3 number, since 3×20807040558³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20807040559) 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 3 ways as a sum of consecutive naturals, for example, 1733920041 + ... + 1733920052.

It is an arithmetic number, because the mean of its divisors is an integer number (5201760141).

Almost surely, 2^20807040558 is an apocalyptic number.

20807040558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20807040558 is a wasteful number, since it uses less digits than its factorization.

20807040558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467840098.

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 20807040558 in words is "twenty billion, eight hundred seven million, forty thousand, five hundred fifty-eight".