1161613886515 has 16 divisors (see below), whose sum is σ = 1414498381056. Its totient is φ = 915600498400.

The previous prime is 1161613886479. The next prime is 1161613886599. The reversal of 1161613886515 is 5156883161611.

It is not a de Polignac number, because 1161613886515 - 2⁹ = 1161613886003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533581 + ... + 1614910.

It is an arithmetic number, because the mean of its divisors is an integer number (88406148816).

Almost surely, 2^{1161613886515} is an apocalyptic number.

1161613886515 is a deficient number, since it is larger than the sum of its proper divisors (252884494541).

1161613886515 is a wasteful number, since it uses less digits than its factorization.

1161613886515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150090.

The product of its digits is 1036800, while the sum is 52.

The spelling of 1161613886515 in words is "one trillion, one hundred sixty-one billion, six hundred thirteen million, eight hundred eighty-six thousand, five hundred fifteen".