1264116511 has 8 divisors (see below), whose sum is σ = 1458207360. Its totient is φ = 1073401368.

The previous prime is 1264116479. The next prime is 1264116523. The reversal of 1264116511 is 1156114621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1264116511 - 2⁵ = 1264116479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264116511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264116541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843121 + ... + 844618.

It is an arithmetic number, because the mean of its divisors is an integer number (182275920).

Almost surely, 2^1264116511 is an apocalyptic number.

1264116511 is a deficient number, since it is larger than the sum of its proper divisors (194090849).

1264116511 is a wasteful number, since it uses less digits than its factorization.

1264116511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687853.

The product of its digits is 1440, while the sum is 28.

The square root of 1264116511 is about 35554.4161954602. The cubic root of 1264116511 is about 1081.2572552511.

The spelling of 1264116511 in words is "one billion, two hundred sixty-four million, one hundred sixteen thousand, five hundred eleven".