260646515331 has 16 divisors (see below), whose sum is σ = 366609815040. Its totient is φ = 164263286880.

The previous prime is 260646515309. The next prime is 260646515357. The reversal of 260646515331 is 133515646062.

It is not a de Polignac number, because 260646515331 - 2¹⁹ = 260645991043 is a prime.

It is a super-2 number, since 2×260646515331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260646517331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4911780 + ... + 4964561.

It is an arithmetic number, because the mean of its divisors is an integer number (22913113440).

Almost surely, 2^260646515331 is an apocalyptic number.

260646515331 is a deficient number, since it is larger than the sum of its proper divisors (105963299709).

260646515331 is a wasteful number, since it uses less digits than its factorization.

260646515331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9876826.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 260646515331 in words is "two hundred sixty billion, six hundred forty-six million, five hundred fifteen thousand, three hundred thirty-one".