20310325621166 has 16 divisors (see below), whose sum is σ = 34817761628160. Its totient is φ = 8704410125400.

The previous prime is 20310325621153. The next prime is 20310325621171. The reversal of 20310325621166 is 66112652301302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11584091 + ... + 13221641.

It is an arithmetic number, because the mean of its divisors is an integer number (2176110101760).

Almost surely, 2^{20310325621166} is an apocalyptic number.

20310325621166 is a deficient number, since it is larger than the sum of its proper divisors (14507436006994).

20310325621166 is a wasteful number, since it uses less digits than its factorization.

20310325621166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523479.

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 20310325621166 its reverse (66112652301302), we get a palindrome (86422977922468).

The spelling of 20310325621166 in words is "twenty trillion, three hundred ten billion, three hundred twenty-five million, six hundred twenty-one thousand, one hundred sixty-six".