161166201013 has 8 divisors (see below), whose sum is σ = 168352930368. Its totient is φ = 153994430304.

The previous prime is 161166200981. The next prime is 161166201037. The reversal of 161166201013 is 310102661161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161166201013 - 2⁵ = 161166200981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161166201083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3717631 + ... + 3760732.

It is an arithmetic number, because the mean of its divisors is an integer number (21044116296).

Almost surely, 2^161166201013 is an apocalyptic number.

It is an amenable number.

161166201013 is a deficient number, since it is larger than the sum of its proper divisors (7186729355).

161166201013 is an equidigital number, since it uses as much as digits as its factorization.

161166201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479323.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 161166201013 its reverse (310102661161), we get a palindrome (471268862174).

The spelling of 161166201013 in words is "one hundred sixty-one billion, one hundred sixty-six million, two hundred one thousand, thirteen".