2605163260516 has 12 divisors (see below), whose sum is σ = 4570182495340. Its totient is φ = 1299396833280.

The previous prime is 2605163260493. The next prime is 2605163260547. The reversal of 2605163260516 is 6150623615062.

It can be written as a sum of positive squares in 2 ways, for example, as 978211990116 + 1626951270400 = 989046^2 + 1275520^2 .

It is a super-2 number, since 2×2605163260516² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796197405 + ... + 796200676.

Almost surely, 2^{2605163260516} is an apocalyptic number.

It is an amenable number.

2605163260516 is a deficient number, since it is larger than the sum of its proper divisors (1965019234824).

2605163260516 is a wasteful number, since it uses less digits than its factorization.

2605163260516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592398494 (or 1592398492 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

Adding to 2605163260516 its reverse (6150623615062), we get a palindrome (8755786875578).

The spelling of 2605163260516 in words is "two trillion, six hundred five billion, one hundred sixty-three million, two hundred sixty thousand, five hundred sixteen".