1260540525166 has 64 divisors (see below), whose sum is σ = 2126474380800. Its totient is φ = 556475443200.

The previous prime is 1260540525161. The next prime is 1260540525323. The reversal of 1260540525166 is 6615250450621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260540525161) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 35914746 + ... + 35949826.

It is an arithmetic number, because the mean of its divisors is an integer number (33226162200).

Almost surely, 2^{1260540525166} is an apocalyptic number.

1260540525166 is a deficient number, since it is larger than the sum of its proper divisors (865933855634).

1260540525166 is a wasteful number, since it uses less digits than its factorization.

1260540525166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35645.

The product of its (nonzero) digits is 432000, while the sum is 43.

Adding to 1260540525166 its reverse (6615250450621), we get a palindrome (7875790975787).

The spelling of 1260540525166 in words is "one trillion, two hundred sixty billion, five hundred forty million, five hundred twenty-five thousand, one hundred sixty-six".