161500003041201 has 32 divisors (see below), whose sum is σ = 241255859235840. Its totient is φ = 95267155512000.

The previous prime is 161500003041101. The next prime is 161500003041287. The reversal of 161500003041201 is 102140300005161.

It is a happy number.

It is not a de Polignac number, because 161500003041201 - 2¹⁰ = 161500003040177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161500003041101) 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, 410437645 + ... + 410830938.

It is an arithmetic number, because the mean of its divisors is an integer number (7539245601120).

Almost surely, 2^{161500003041201} is an apocalyptic number.

161500003041201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161500003041201 is a deficient number, since it is larger than the sum of its proper divisors (79755856194639).

161500003041201 is a wasteful number, since it uses less digits than its factorization.

161500003041201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821268757.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 161500003041201 its reverse (102140300005161), we get a palindrome (263640303046362).

The spelling of 161500003041201 in words is "one hundred sixty-one trillion, five hundred billion, three million, forty-one thousand, two hundred one".