20950546508 has 12 divisors (see below), whose sum is σ = 37210672632. Its totient is φ = 10318925760.

The previous prime is 20950546501. The next prime is 20950546553. The reversal of 20950546508 is 80564505902.

It is not an unprimeable number, because it can be changed into a prime (20950546501) 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 3 ways as a sum of consecutive naturals, for example, 39086573 + ... + 39087108.

It is an arithmetic number, because the mean of its divisors is an integer number (3100889386).

Almost surely, 2^20950546508 is an apocalyptic number.

It is an amenable number.

20950546508 is a deficient number, since it is larger than the sum of its proper divisors (16260126124).

20950546508 is a wasteful number, since it uses less digits than its factorization.

20950546508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78173752 (or 78173750 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 20950546508 in words is "twenty billion, nine hundred fifty million, five hundred forty-six thousand, five hundred eight".