65500057166 has 4 divisors (see below), whose sum is σ = 98250085752. Its totient is φ = 32750028582.

The previous prime is 65500057127. The next prime is 65500057171. The reversal of 65500057166 is 66175000556.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 16375014290 + ... + 16375014293.

It is an arithmetic number, because the mean of its divisors is an integer number (24562521438).

Almost surely, 2^65500057166 is an apocalyptic number.

65500057166 is a deficient number, since it is larger than the sum of its proper divisors (32750028586).

65500057166 is a wasteful number, since it uses less digits than its factorization.

65500057166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32750028585.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 65500057166 in words is "sixty-five billion, five hundred million, fifty-seven thousand, one hundred sixty-six".