289160607561 has 24 divisors (see below), whose sum is σ = 451464197184. Its totient is φ = 164140351200.

The previous prime is 289160607559. The next prime is 289160607587. The reversal of 289160607561 is 165706061982.

It is not a de Polignac number, because 289160607561 - 2¹ = 289160607559 is a prime.

It is a super-2 number, since 2×289160607561² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (289160607511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6491310 + ... + 6535703.

It is an arithmetic number, because the mean of its divisors is an integer number (18811008216).

Almost surely, 2^289160607561 is an apocalyptic number.

289160607561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

289160607561 is a deficient number, since it is larger than the sum of its proper divisors (162303589623).

289160607561 is a wasteful number, since it uses less digits than its factorization.

289160607561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13027181 (or 13027174 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 289160607561 in words is "two hundred eighty-nine billion, one hundred sixty million, six hundred seven thousand, five hundred sixty-one".