161106115160099 has 4 divisors (see below), whose sum is σ = 168110728862736. Its totient is φ = 154101501457464.

The previous prime is 161106115160077. The next prime is 161106115160113. The reversal of 161106115160099 is 990061511601161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161106115160099 - 2¹⁶ = 161106115094563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161106115162099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3502306851284 + ... + 3502306851329.

It is an arithmetic number, because the mean of its divisors is an integer number (42027682215684).

Almost surely, 2^{161106115160099} is an apocalyptic number.

161106115160099 is a deficient number, since it is larger than the sum of its proper divisors (7004613702637).

161106115160099 is an equidigital number, since it uses as much as digits as its factorization.

161106115160099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004613702636.

The product of its (nonzero) digits is 87480, while the sum is 47.

The spelling of 161106115160099 in words is "one hundred sixty-one trillion, one hundred six billion, one hundred fifteen million, one hundred sixty thousand, ninety-nine".