168686752001 has 2 divisors, whose sum is σ = 168686752002. Its totient is φ = 168686752000.

The previous prime is 168686751949. The next prime is 168686752043. The reversal of 168686752001 is 100257686861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168264860401 + 421891600 = 410201^2 + 20540^2 .

It is a cyclic number.

It is not a de Polignac number, because 168686752001 - 2¹⁰ = 168686750977 is a prime.

It is not a weakly prime, because it can be changed into another prime (168686754001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84343376000 + 84343376001.

It is an arithmetic number, because the mean of its divisors is an integer number (84343376001).

Almost surely, 2^168686752001 is an apocalyptic number.

It is an amenable number.

168686752001 is a deficient number, since it is larger than the sum of its proper divisors (1).

168686752001 is an equidigital number, since it uses as much as digits as its factorization.

168686752001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 168686752001 in words is "one hundred sixty-eight billion, six hundred eighty-six million, seven hundred fifty-two thousand, one".