171407066401 has 2 divisors, whose sum is σ = 171407066402. Its totient is φ = 171407066400.

The previous prime is 171407066399. The next prime is 171407066513. The reversal of 171407066401 is 104660704171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170384026176 + 1023040225 = 412776^2 + 31985^2 .

It is a cyclic number.

It is not a de Polignac number, because 171407066401 - 2¹ = 171407066399 is a prime.

Together with 171407066399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (171407064401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85703533200 + 85703533201.

It is an arithmetic number, because the mean of its divisors is an integer number (85703533201).

Almost surely, 2^171407066401 is an apocalyptic number.

It is an amenable number.

171407066401 is a deficient number, since it is larger than the sum of its proper divisors (1).

171407066401 is an equidigital number, since it uses as much as digits as its factorization.

171407066401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 171407066401 in words is "one hundred seventy-one billion, four hundred seven million, sixty-six thousand, four hundred one".