161116606 has 24 divisors (see below), whose sum is σ = 283730040. Its totient is φ = 68411952.

The previous prime is 161116603. The next prime is 161116609. The reversal of 161116606 is 606611161.

It is an interprime number because it is at equal distance from previous prime (161116603) and next prime (161116609).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161116601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3141 + ... + 18223.

It is an arithmetic number, because the mean of its divisors is an integer number (11822085).

Almost surely, 2^161116606 is an apocalyptic number.

161116606 is a deficient number, since it is larger than the sum of its proper divisors (122613434).

161116606 is a wasteful number, since it uses less digits than its factorization.

161116606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15208 (or 15201 counting only the distinct ones).

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

The square root of 161116606 is about 12693.1716288720. The cubic root of 161116606 is about 544.1434864260.

Adding to 161116606 its reverse (606611161), we get a palindrome (767727767).

The spelling of 161116606 in words is "one hundred sixty-one million, one hundred sixteen thousand, six hundred six".