20740444552016 has 40 divisors (see below), whose sum is σ = 45927554585280. Its totient is φ = 8888319788544.

The previous prime is 20740444552013. The next prime is 20740444552021. The reversal of 20740444552016 is 61025544404702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20740444552013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339321 + ... + 6852248.

It is an arithmetic number, because the mean of its divisors is an integer number (1148188864632).

Almost surely, 2^{20740444552016} is an apocalyptic number.

It is an amenable number.

20740444552016 is an abundant number, since it is smaller than the sum of its proper divisors (25187110033264).

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

20740444552016 is a wasteful number, since it uses less digits than its factorization.

20740444552016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211731 (or 9211725 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 44.

Adding to 20740444552016 its reverse (61025544404702), we get a palindrome (81765988956718).

The spelling of 20740444552016 in words is "twenty trillion, seven hundred forty billion, four hundred forty-four million, five hundred fifty-two thousand, sixteen".