260631691441 has 9 divisors (see below), whose sum is σ = 286485635289. Its totient is φ = 236932796100.

The previous prime is 260631691429. The next prime is 260631691447. The reversal of 260631691441 is 144196136062.

The square root of 260631691441 is 510521.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 260631691441 - 2²³ = 260623302833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260631691447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5592526 + ... + 5638936.

Almost surely, 2^260631691441 is an apocalyptic number.

260631691441 is the 510521-st square number.

260631691441 is the 255261-st centered octagonal number.

It is an amenable number.

260631691441 is a deficient number, since it is larger than the sum of its proper divisors (25853943848).

260631691441 is an frugal number, since it uses more digits than its factorization.

260631691441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92844 (or 46422 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 260631691441 in words is "two hundred sixty billion, six hundred thirty-one million, six hundred ninety-one thousand, four hundred forty-one".