166122632356402 has 12 divisors (see below), whose sum is σ = 257481436938318. Its totient is φ = 80381918881200.

The previous prime is 166122632356319. The next prime is 166122632356411. The reversal of 166122632356402 is 204653236221661.

It can be written as a sum of positive squares in only one way, i.e., 145839219584881 + 20283412771521 = 12076391^2 + 4503711^2 .

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 5 ways as a sum of consecutive naturals, for example, 43216083499 + ... + 43216087342.

Almost surely, 2^{166122632356402} is an apocalyptic number.

166122632356402 is a deficient number, since it is larger than the sum of its proper divisors (91358804581916).

166122632356402 is an equidigital number, since it uses as much as digits as its factorization.

166122632356402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86432170905 (or 86432170874 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 166122632356402 in words is "one hundred sixty-six trillion, one hundred twenty-two billion, six hundred thirty-two million, three hundred fifty-six thousand, four hundred two".