1115161064 has 16 divisors (see below), whose sum is σ = 2091705120. Its totient is φ = 557373040.

The previous prime is 1115161063. The next prime is 1115161081. The reversal of 1115161064 is 4601615111.

It is a super-2 number, since 2×1115161064² = 2487168397323224192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1115161063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1772 + ... + 47259.

It is an arithmetic number, because the mean of its divisors is an integer number (130731570).

Almost surely, 2^1115161064 is an apocalyptic number.

It is an amenable number.

1115161064 is a deficient number, since it is larger than the sum of its proper divisors (976544056).

1115161064 is a wasteful number, since it uses less digits than its factorization.

1115161064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51880 (or 51876 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1115161064 is about 33394.0273701750. The cubic root of 1115161064 is about 1037.0010573104.

Adding to 1115161064 its reverse (4601615111), we get a palindrome (5716776175).

The spelling of 1115161064 in words is "one billion, one hundred fifteen million, one hundred sixty-one thousand, sixty-four".