161500417607 has 2 divisors, whose sum is σ = 161500417608. Its totient is φ = 161500417606.

The previous prime is 161500417553. The next prime is 161500417609. The reversal of 161500417607 is 706714005161.

161500417607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161500417607 - 2⁶ = 161500417543 is a prime.

Together with 161500417609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161500417609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80750208803 + 80750208804.

It is an arithmetic number, because the mean of its divisors is an integer number (80750208804).

Almost surely, 2^161500417607 is an apocalyptic number.

161500417607 is a deficient number, since it is larger than the sum of its proper divisors (1).

161500417607 is an equidigital number, since it uses as much as digits as its factorization.

161500417607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 161500417607 in words is "one hundred sixty-one billion, five hundred million, four hundred seventeen thousand, six hundred seven".