161110000605 has 16 divisors (see below), whose sum is σ = 268983653760. Its totient is φ = 82189449408.

The previous prime is 161110000561. The next prime is 161110000613. The reversal of 161110000605 is 506000011161.

It is not a de Polignac number, because 161110000605 - 2⁸ = 161110000349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233492410 + ... + 233493099.

It is an arithmetic number, because the mean of its divisors is an integer number (16811478360).

Almost surely, 2^161110000605 is an apocalyptic number.

161110000605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161110000605 is a deficient number, since it is larger than the sum of its proper divisors (107873653155).

161110000605 is a wasteful number, since it uses less digits than its factorization.

161110000605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466985540.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 161110000605 its reverse (506000011161), we get a palindrome (667110011766).

The spelling of 161110000605 in words is "one hundred sixty-one billion, one hundred ten million, six hundred five", and thus it is an aban number.