160641659897 has 2 divisors, whose sum is σ = 160641659898. Its totient is φ = 160641659896.

The previous prime is 160641659887. The next prime is 160641659909. The reversal of 160641659897 is 798956146061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157009307536 + 3632352361 = 396244^2 + 60269^2 .

It is a cyclic number.

It is not a de Polignac number, because 160641659897 - 2⁶ = 160641659833 is a prime.

It is not a weakly prime, because it can be changed into another prime (160641659807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80320829948 + 80320829949.

It is an arithmetic number, because the mean of its divisors is an integer number (80320829949).

Almost surely, 2^160641659897 is an apocalyptic number.

It is an amenable number.

160641659897 is a deficient number, since it is larger than the sum of its proper divisors (1).

160641659897 is an equidigital number, since it uses as much as digits as its factorization.

160641659897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 160641659897 in words is "one hundred sixty billion, six hundred forty-one million, six hundred fifty-nine thousand, eight hundred ninety-seven".