6165961878 has 16 divisors (see below), whose sum is σ = 12352939200. Its totient is φ = 2051818056.

The previous prime is 6165961853. The next prime is 6165961891. The reversal of 6165961878 is 8781695616.

It is a congruent 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, 871828 + ... + 878871.

It is an arithmetic number, because the mean of its divisors is an integer number (772058700).

Almost surely, 2^6165961878 is an apocalyptic number.

6165961878 is an abundant number, since it is smaller than the sum of its proper divisors (6186977322).

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

6165961878 is a wasteful number, since it uses less digits than its factorization.

6165961878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751291.

The product of its digits is 4354560, while the sum is 57.

The square root of 6165961878 is about 78523.6389757887. The cubic root of 6165961878 is about 1833.7224911479.

The spelling of 6165961878 in words is "six billion, one hundred sixty-five million, nine hundred sixty-one thousand, eight hundred seventy-eight".