1164242556 has 36 divisors (see below), whose sum is σ = 3097840200. Its totient is φ = 367655328.

The previous prime is 1164242549. The next prime is 1164242557. The reversal of 1164242556 is 6552424611.

1164242556 is a `hidden beast` number, since 1 + 1 + 64 + 2 + 42 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1164242556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164242557) 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 11 ways as a sum of consecutive naturals, for example, 850371 + ... + 851738.

Almost surely, 2^1164242556 is an apocalyptic number.

It is an amenable number.

1164242556 is an abundant number, since it is smaller than the sum of its proper divisors (1933597644).

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

1164242556 is a wasteful number, since it uses less digits than its factorization.

1164242556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702138 (or 1702133 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 1164242556 is about 34120.9987544327. The cubic root of 1164242556 is about 1051.9969723826.

The spelling of 1164242556 in words is "one billion, one hundred sixty-four million, two hundred forty-two thousand, five hundred fifty-six".