159705401643 has 12 divisors (see below), whose sum is σ = 235593784608. Its totient is φ = 104204942640.

The previous prime is 159705401627. The next prime is 159705401671. The reversal of 159705401643 is 346104507951.

159705401643 is a `hidden beast` number, since 1 + 5 + 97 + 0 + 540 + 16 + 4 + 3 = 666.

159705401643 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 159705401643 - 2⁴ = 159705401627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159705401623) 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 in 11 ways as a sum of consecutive naturals, for example, 188776648 + ... + 188777493.

It is an arithmetic number, because the mean of its divisors is an integer number (19632815384).

Almost surely, 2^159705401643 is an apocalyptic number.

159705401643 is a deficient number, since it is larger than the sum of its proper divisors (75888382965).

159705401643 is a wasteful number, since it uses less digits than its factorization.

159705401643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377554194 (or 377554191 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 159705401643 in words is "one hundred fifty-nine billion, seven hundred five million, four hundred one thousand, six hundred forty-three".