159776260897 has 4 divisors (see below), whose sum is σ = 174301375536. Its totient is φ = 145251146260.

The previous prime is 159776260879. The next prime is 159776260933. The reversal of 159776260897 is 798062677951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 159776260897 - 2⁷ = 159776260769 is a prime.

It is a super-2 number, since 2×159776260897² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159776260867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7262557303 + ... + 7262557324.

It is an arithmetic number, because the mean of its divisors is an integer number (43575343884).

Almost surely, 2^159776260897 is an apocalyptic number.

It is an amenable number.

159776260897 is a deficient number, since it is larger than the sum of its proper divisors (14525114639).

159776260897 is a wasteful number, since it uses less digits than its factorization.

159776260897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14525114638.

The product of its (nonzero) digits is 80015040, while the sum is 67.

The spelling of 159776260897 in words is "one hundred fifty-nine billion, seven hundred seventy-six million, two hundred sixty thousand, eight hundred ninety-seven".