1171116161216 has 56 divisors (see below), whose sum is σ = 2410998754320. Its totient is φ = 563736814592.

The previous prime is 1171116161207. The next prime is 1171116161219. The reversal of 1171116161216 is 6121616111711.

It is a super-2 number, since 2×1171116161216² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1171116161219) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 265175 + ... + 1553238.

Almost surely, 2^{1171116161216} is an apocalyptic number.

1171116161216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1171116161216 is an abundant number, since it is smaller than the sum of its proper divisors (1239882593104).

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

1171116161216 is a wasteful number, since it uses less digits than its factorization.

1171116161216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818801 (or 1818791 counting only the distinct ones).

The product of its digits is 3024, while the sum is 35.

The spelling of 1171116161216 in words is "one trillion, one hundred seventy-one billion, one hundred sixteen million, one hundred sixty-one thousand, two hundred sixteen".