260665124222531 has 4 divisors (see below), whose sum is σ = 297902999111472. Its totient is φ = 223427249333592.

The previous prime is 260665124222501. The next prime is 260665124222543. The reversal of 260665124222531 is 135222421566062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260665124222531 - 2¹⁴ = 260665124206147 is a prime.

It is a super-2 number, since 2×260665124222531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260665124222501) 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, 18618937444460 + ... + 18618937444473.

It is an arithmetic number, because the mean of its divisors is an integer number (74475749777868).

Almost surely, 2^{260665124222531} is an apocalyptic number.

260665124222531 is a deficient number, since it is larger than the sum of its proper divisors (37237874888941).

260665124222531 is an equidigital number, since it uses as much as digits as its factorization.

260665124222531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37237874888940.

The product of its (nonzero) digits is 2073600, while the sum is 47.

Adding to 260665124222531 its reverse (135222421566062), we get a palindrome (395887545788593).

The spelling of 260665124222531 in words is "two hundred sixty trillion, six hundred sixty-five billion, one hundred twenty-four million, two hundred twenty-two thousand, five hundred thirty-one".