67536237645 has 16 divisors (see below), whose sum is σ = 120064422720. Its totient is φ = 36019326672.

The previous prime is 67536237619. The next prime is 67536237667. The reversal of 67536237645 is 54673263576.

67536237645 is a `hidden beast` number, since 6 + 7 + 5 + 3 + 623 + 7 + 6 + 4 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-67536237645 is a prime.

It is a super-3 number, since 3×67536237645³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 67536237591 and 67536237600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250134079 + ... + 250134348.

It is an arithmetic number, because the mean of its divisors is an integer number (7504026420).

Almost surely, 2^67536237645 is an apocalyptic number.

It is an amenable number.

67536237645 is a deficient number, since it is larger than the sum of its proper divisors (52528185075).

67536237645 is a wasteful number, since it uses less digits than its factorization.

67536237645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500268441 (or 500268435 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 54.

The spelling of 67536237645 in words is "sixty-seven billion, five hundred thirty-six million, two hundred thirty-seven thousand, six hundred forty-five".