260213562405 has 48 divisors (see below), whose sum is σ = 462970301040. Its totient is φ = 135153792000.

The previous prime is 260213562379. The next prime is 260213562437. The reversal of 260213562405 is 504265312062.

260213562405 is a `hidden beast` number, since 2 + 6 + 0 + 21 + 3 + 5 + 624 + 0 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 30935844 + 260182626561 = 5562^2 + 510081^2 .

It is not a de Polignac number, because 260213562405 - 2⁶ = 260213562341 is a prime.

It is a super-2 number, since 2×260213562405² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 260213562405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192040 + ... + 746529.

It is an arithmetic number, because the mean of its divisors is an integer number (9645214605).

Almost surely, 2^260213562405 is an apocalyptic number.

It is an amenable number.

260213562405 is a deficient number, since it is larger than the sum of its proper divisors (202756738635).

260213562405 is a wasteful number, since it uses less digits than its factorization.

260213562405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938742 (or 938739 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 260213562405 its reverse (504265312062), we get a palindrome (764478874467).

The spelling of 260213562405 in words is "two hundred sixty billion, two hundred thirteen million, five hundred sixty-two thousand, four hundred five".