1164255611720 has 16 divisors (see below), whose sum is σ = 2619575126460. Its totient is φ = 465702244672.

The previous prime is 1164255611677. The next prime is 1164255611749. The reversal of 1164255611720 is 271165524611.

It can be written as a sum of positive squares in 2 ways, for example, as 948586394116 + 215669217604 = 973954^2 + 464402^2 .

It is a super-2 number, since 2×1164255611720² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14553195107 + ... + 14553195186.

Almost surely, 2^{1164255611720} is an apocalyptic number.

1164255611720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164255611720 is an abundant number, since it is smaller than the sum of its proper divisors (1455319514740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1164255611720 is a wasteful number, since it uses less digits than its factorization.

1164255611720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29106390304 (or 29106390300 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 1164255611720 in words is "one trillion, one hundred sixty-four billion, two hundred fifty-five million, six hundred eleven thousand, seven hundred twenty".