161065500101011 has 32 divisors (see below), whose sum is σ = 183193104384000. Its totient is φ = 140281861994400.

The previous prime is 161065500100957. The next prime is 161065500101039. The reversal of 161065500101011 is 110101005560161.

It is not a de Polignac number, because 161065500101011 - 2¹¹ = 161065500098963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161065500171011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53221590 + ... + 56166436.

It is an arithmetic number, because the mean of its divisors is an integer number (5724784512000).

Almost surely, 2^{161065500101011} is an apocalyptic number.

161065500101011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

161065500101011 is a deficient number, since it is larger than the sum of its proper divisors (22127604282989).

161065500101011 is a wasteful number, since it uses less digits than its factorization.

161065500101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946495.

The product of its (nonzero) digits is 900, while the sum is 28.

Adding to 161065500101011 its reverse (110101005560161), we get a palindrome (271166505661172).

The spelling of 161065500101011 in words is "one hundred sixty-one trillion, sixty-five billion, five hundred million, one hundred one thousand, eleven".