1268160507550 has 12 divisors (see below), whose sum is σ = 2358778544136. Its totient is φ = 507264203000.

The previous prime is 1268160507503. The next prime is 1268160507557. The reversal of 1268160507550 is 557050618621.

It is a self number, because there is not a number n which added to its sum of digits gives 1268160507550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268160507557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12681605026 + ... + 12681605125.

It is an arithmetic number, because the mean of its divisors is an integer number (196564878678).

Almost surely, 2^{1268160507550} is an apocalyptic number.

1268160507550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1268160507550 is a deficient number, since it is larger than the sum of its proper divisors (1090618036586).

1268160507550 is a wasteful number, since it uses less digits than its factorization.

1268160507550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25363210163 (or 25363210158 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 1268160507550 in words is "one trillion, two hundred sixty-eight billion, one hundred sixty million, five hundred seven thousand, five hundred fifty".