168425017601 has 2 divisors, whose sum is σ = 168425017602. Its totient is φ = 168425017600.

The previous prime is 168425017597. The next prime is 168425017627. The reversal of 168425017601 is 106710524861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93963706225 + 74461311376 = 306535^2 + 272876^2 .

It is an emirp because it is prime and its reverse (106710524861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168425017601 - 2² = 168425017597 is a prime.

It is a super-3 number, since 3×168425017601³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (168425017661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84212508800 + 84212508801.

It is an arithmetic number, because the mean of its divisors is an integer number (84212508801).

Almost surely, 2^168425017601 is an apocalyptic number.

It is an amenable number.

168425017601 is a deficient number, since it is larger than the sum of its proper divisors (1).

168425017601 is an equidigital number, since it uses as much as digits as its factorization.

168425017601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 168425017601 in words is "one hundred sixty-eight billion, four hundred twenty-five million, seventeen thousand, six hundred one".