612105535505 has 64 divisors (see below), whose sum is σ = 789725583360. Its totient is φ = 454610534400.

The previous prime is 612105535477. The next prime is 612105535511. The reversal of 612105535505 is 505535501216.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-612105535505 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 344459177 + ... + 344460953.

It is an arithmetic number, because the mean of its divisors is an integer number (12339462240).

Almost surely, 2^612105535505 is an apocalyptic number.

It is an amenable number.

612105535505 is a deficient number, since it is larger than the sum of its proper divisors (177620047855).

612105535505 is a wasteful number, since it uses less digits than its factorization.

612105535505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 612105535505 in words is "six hundred twelve billion, one hundred five million, five hundred thirty-five thousand, five hundred five".