159705401623 has 2 divisors, whose sum is σ = 159705401624. Its totient is φ = 159705401622.

The previous prime is 159705401591. The next prime is 159705401627. The reversal of 159705401623 is 326104507951.

159705401623 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 159705401623 - 2⁵ = 159705401591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159705401623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159705401627) 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, 79852700811 + 79852700812.

It is an arithmetic number, because the mean of its divisors is an integer number (79852700812).

Almost surely, 2^159705401623 is an apocalyptic number.

159705401623 is a deficient number, since it is larger than the sum of its proper divisors (1).

159705401623 is an equidigital number, since it uses as much as digits as its factorization.

159705401623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 159705401623 in words is "one hundred fifty-nine billion, seven hundred five million, four hundred one thousand, six hundred twenty-three".