1165111105616 has 20 divisors (see below), whose sum is σ = 2355550714272. Its totient is φ = 557227050336.

The previous prime is 1165111105607. The next prime is 1165111105643. The reversal of 1165111105616 is 6165011115611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583031026 + ... + 1583031761.

Almost surely, 2^{1165111105616} is an apocalyptic number.

1165111105616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1165111105616 is an abundant number, since it is smaller than the sum of its proper divisors (1190439608656).

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

1165111105616 is a wasteful number, since it uses less digits than its factorization.

1165111105616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166062818 (or 3166062812 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 35.

The spelling of 1165111105616 in words is "one trillion, one hundred sixty-five billion, one hundred eleven million, one hundred five thousand, six hundred sixteen".