20057744306 has 32 divisors (see below), whose sum is σ = 30883223808. Its totient is φ = 9767197440.

The previous prime is 20057744261. The next prime is 20057744309. The reversal of 20057744306 is 60344775002.

20057744306 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20057744306.

It is not an unprimeable number, because it can be changed into a prime (20057744309) 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 15 ways as a sum of consecutive naturals, for example, 7009316 + ... + 7012176.

It is an arithmetic number, because the mean of its divisors is an integer number (965100744).

Almost surely, 2^20057744306 is an apocalyptic number.

20057744306 is a deficient number, since it is larger than the sum of its proper divisors (10825479502).

20057744306 is a wasteful number, since it uses less digits than its factorization.

20057744306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 20057744306 in words is "twenty billion, fifty-seven million, seven hundred forty-four thousand, three hundred six".