201502161161 has 4 divisors (see below), whose sum is σ = 230288184192. Its totient is φ = 172716138132.

The previous prime is 201502161149. The next prime is 201502161173. The reversal of 201502161161 is 161161205102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (201502161149) and next prime (201502161173).

It is a cyclic number.

It is not a de Polignac number, because 201502161161 - 2¹⁴ = 201502144777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201502161161.

It is not an unprimeable number, because it can be changed into a prime (201502161191) 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, 14393011505 + ... + 14393011518.

It is an arithmetic number, because the mean of its divisors is an integer number (57572046048).

Almost surely, 2^201502161161 is an apocalyptic number.

It is an amenable number.

201502161161 is a deficient number, since it is larger than the sum of its proper divisors (28786023031).

201502161161 is an equidigital number, since it uses as much as digits as its factorization.

201502161161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28786023030.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 201502161161 its reverse (161161205102), we get a palindrome (362663366263).

The spelling of 201502161161 in words is "two hundred one billion, five hundred two million, one hundred sixty-one thousand, one hundred sixty-one".