260563311518 has 4 divisors (see below), whose sum is σ = 390844967280. Its totient is φ = 130281655758.

The previous prime is 260563311499. The next prime is 260563311527. The reversal of 260563311518 is 815113365062.

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

It is a super-2 number, since 2×260563311518² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65140827878 + ... + 65140827881.

It is an arithmetic number, because the mean of its divisors is an integer number (97711241820).

Almost surely, 2^260563311518 is an apocalyptic number.

260563311518 is a deficient number, since it is larger than the sum of its proper divisors (130281655762).

260563311518 is a wasteful number, since it uses less digits than its factorization.

260563311518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130281655761.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 260563311518 in words is "two hundred sixty billion, five hundred sixty-three million, three hundred eleven thousand, five hundred eighteen".