111161165345 has 16 divisors (see below), whose sum is σ = 135924222720. Its totient is φ = 87257559744.

The previous prime is 111161165341. The next prime is 111161165347. The reversal of 111161165345 is 543561161111.

It is a cyclic number.

It is not a de Polignac number, because 111161165345 - 2² = 111161165341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111161165341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933989 + ... + 1046258.

It is an arithmetic number, because the mean of its divisors is an integer number (8495263920).

Almost surely, 2^111161165345 is an apocalyptic number.

It is an amenable number.

111161165345 is a deficient number, since it is larger than the sum of its proper divisors (24763057375).

111161165345 is a wasteful number, since it uses less digits than its factorization.

111161165345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980464.

The product of its digits is 10800, while the sum is 35.

The spelling of 111161165345 in words is "one hundred eleven billion, one hundred sixty-one million, one hundred sixty-five thousand, three hundred forty-five".