20205544010 has 16 divisors (see below), whose sum is σ = 36375559272. Its totient is φ = 8080977600.

The previous prime is 20205544001. The next prime is 20205544043. The reversal of 20205544010 is 1044550202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19776515641 + 429028369 = 140629^2 + 20713^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85061 + ... + 218280.

Almost surely, 2^20205544010 is an apocalyptic number.

20205544010 is a deficient number, since it is larger than the sum of its proper divisors (16170015262).

20205544010 is a wasteful number, since it uses less digits than its factorization.

20205544010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310009.

The product of its (nonzero) digits is 1600, while the sum is 23.

The spelling of 20205544010 in words is "twenty billion, two hundred five million, five hundred forty-four thousand, ten".