161116151 has 8 divisors (see below), whose sum is σ = 185458560. Its totient is φ = 137105208.

The previous prime is 161116121. The next prime is 161116159. The reversal of 161116151 is 151611161.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161116151 is a prime.

It is a super-2 number, since 2×161116151² = 51916828226109602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161116159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81821 + ... + 83766.

It is an arithmetic number, because the mean of its divisors is an integer number (23182320).

Almost surely, 2^161116151 is an apocalyptic number.

161116151 is a deficient number, since it is larger than the sum of its proper divisors (24342409).

161116151 is a wasteful number, since it uses less digits than its factorization.

161116151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165733.

The product of its digits is 180, while the sum is 23.

The square root of 161116151 is about 12693.1537058369. The cubic root of 161116151 is about 544.1429741975.

The spelling of 161116151 in words is "one hundred sixty-one million, one hundred sixteen thousand, one hundred fifty-one".