1161112111116 has 24 divisors (see below), whose sum is σ = 2736085967664. Its totient is φ = 383205316800.

The previous prime is 1161112111097. The next prime is 1161112111129. The reversal of 1161112111116 is 6111112111611.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479005435 + ... + 479007858.

It is an arithmetic number, because the mean of its divisors is an integer number (114003581986).

Almost surely, 2^{1161112111116} is an apocalyptic number.

It is an amenable number.

1161112111116 is an abundant number, since it is smaller than the sum of its proper divisors (1574973856548).

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

1161112111116 is a wasteful number, since it uses less digits than its factorization.

1161112111116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958013401 (or 958013399 counting only the distinct ones).

The product of its digits is 72, while the sum is 24.

Adding to 1161112111116 its reverse (6111112111611), we get a palindrome (7272224222727).

The spelling of 1161112111116 in words is "one trillion, one hundred sixty-one billion, one hundred twelve million, one hundred eleven thousand, one hundred sixteen".