166620762104 has 16 divisors (see below), whose sum is σ = 312421104000. Its totient is φ = 83308467712.

The previous prime is 166620762097. The next prime is 166620762127. The reversal of 166620762104 is 401267026661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172649 + ... + 602535.

It is an arithmetic number, because the mean of its divisors is an integer number (19526319000).

Almost surely, 2^166620762104 is an apocalyptic number.

It is an amenable number.

166620762104 is a deficient number, since it is larger than the sum of its proper divisors (145800341896).

166620762104 is a wasteful number, since it uses less digits than its factorization.

166620762104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478342 (or 478338 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

Adding to 166620762104 its reverse (401267026661), we get a palindrome (567887788765).

The spelling of 166620762104 in words is "one hundred sixty-six billion, six hundred twenty million, seven hundred sixty-two thousand, one hundred four".