20205506076 has 24 divisors (see below), whose sum is σ = 53881349760. Its totient is φ = 5773001712.

The previous prime is 20205506063. The next prime is 20205506093. The reversal of 20205506076 is 67060550202.

It is a congruent number.

It is an unprimeable number.

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, 120270786 + ... + 120270953.

It is an arithmetic number, because the mean of its divisors is an integer number (2245056240).

Almost surely, 2^20205506076 is an apocalyptic number.

It is an amenable number.

20205506076 is an abundant number, since it is smaller than the sum of its proper divisors (33675843684).

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

20205506076 is a wasteful number, since it uses less digits than its factorization.

20205506076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240541753 (or 240541751 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 20205506076 in words is "twenty billion, two hundred five million, five hundred six thousand, seventy-six".