169680544157601 has 12 divisors (see below), whose sum is σ = 245126768180112. Its totient is φ = 113105294075736.

The previous prime is 169680544157489. The next prime is 169680544157609. The reversal of 169680544157601 is 106751445086961.

169680544157601 is a `hidden beast` number, since 1 + 6 + 9 + 6 + 8 + 0 + 5 + 4 + 4 + 15 + 7 + 601 = 666.

169680544157601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 169680544157601 - 2¹⁷ = 169680544026529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169680544157609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1255653351 + ... + 1255788476.

It is an arithmetic number, because the mean of its divisors is an integer number (20427230681676).

Almost surely, 2^{169680544157601} is an apocalyptic number.

It is an amenable number.

169680544157601 is a deficient number, since it is larger than the sum of its proper divisors (75446224022511).

169680544157601 is a wasteful number, since it uses less digits than its factorization.

169680544157601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511449340 (or 2511449337 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 169680544157601 in words is "one hundred sixty-nine trillion, six hundred eighty billion, five hundred forty-four million, one hundred fifty-seven thousand, six hundred one".