20673755934416 has 40 divisors (see below), whose sum is σ = 43563681865704. Its totient is φ = 9447260889600.

The previous prime is 20673755934397. The next prime is 20673755934431. The reversal of 20673755934416 is 61443955737602.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3053742270016 + 17620013664400 = 1747496^2 + 4197620^2 .

It is a super-2 number, since 2×20673755934416² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492023831 + ... + 492065846.

Almost surely, 2^{20673755934416} is an apocalyptic number.

20673755934416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20673755934416 is an abundant number, since it is smaller than the sum of its proper divisors (22889925931288).

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

20673755934416 is a wasteful number, since it uses less digits than its factorization.

20673755934416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984089799 (or 984089793 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 62.

The spelling of 20673755934416 in words is "twenty trillion, six hundred seventy-three billion, seven hundred fifty-five million, nine hundred thirty-four thousand, four hundred sixteen".