6161805215785 has 8 divisors (see below), whose sum is σ = 7394191442496. Its totient is φ = 4929427383600.

The previous prime is 6161805215779. The next prime is 6161805215827. The reversal of 6161805215785 is 5875125081616.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6161805215785 - 2¹⁷ = 6161805084713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351549 + ... + 3528058.

It is an arithmetic number, because the mean of its divisors is an integer number (924273930312).

Almost surely, 2^{6161805215785} is an apocalyptic number.

It is an amenable number.

6161805215785 is a deficient number, since it is larger than the sum of its proper divisors (1232386226711).

6161805215785 is a wasteful number, since it uses less digits than its factorization.

6161805215785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197263.

The product of its (nonzero) digits is 4032000, while the sum is 55.

The spelling of 6161805215785 in words is "six trillion, one hundred sixty-one billion, eight hundred five million, two hundred fifteen thousand, seven hundred eighty-five".