20005232712016 has 20 divisors (see below), whose sum is σ = 38773517875092. Its totient is φ = 9999163582976.

The previous prime is 20005232712001. The next prime is 20005232712041. The reversal of 20005232712016 is 61021723250002.

It can be written as a sum of positive squares in 2 ways, for example, as 2223796737600 + 17781435974416 = 1491240^2 + 4216804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215750515 + ... + 215843218.

Almost surely, 2^{20005232712016} is an apocalyptic number.

It is an amenable number.

20005232712016 is a deficient number, since it is larger than the sum of its proper divisors (18768285163076).

20005232712016 is a wasteful number, since it uses less digits than its factorization.

20005232712016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431596638 (or 431596632 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 20005232712016 its reverse (61021723250002), we get a palindrome (81026955962018).

The spelling of 20005232712016 in words is "twenty trillion, five billion, two hundred thirty-two million, seven hundred twelve thousand, sixteen".