83173525666 has 32 divisors (see below), whose sum is σ = 158181672960. Its totient is φ = 31856024400.

The previous prime is 83173525663. The next prime is 83173525703. The reversal of 83173525666 is 66652537138.

It is not an unprimeable number, because it can be changed into a prime (83173525663) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4567930 + ... + 4586101.

It is an arithmetic number, because the mean of its divisors is an integer number (4943177280).

Almost surely, 2^83173525666 is an apocalyptic number.

83173525666 is a deficient number, since it is larger than the sum of its proper divisors (75008147294).

83173525666 is a wasteful number, since it uses less digits than its factorization.

83173525666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9154110.

The product of its digits is 5443200, while the sum is 52.

The spelling of 83173525666 in words is "eighty-three billion, one hundred seventy-three million, five hundred twenty-five thousand, six hundred sixty-six".