161182816516 has 48 divisors (see below), whose sum is σ = 305225286912. Its totient is φ = 74186150400.

The previous prime is 161182816507. The next prime is 161182816517. The reversal of 161182816516 is 615618281161.

It is a super-3 number, since 3×161182816516³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (161182816517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4876606 + ... + 4909546.

It is an arithmetic number, because the mean of its divisors is an integer number (6358860144).

Almost surely, 2^161182816516 is an apocalyptic number.

It is an amenable number.

161182816516 is a deficient number, since it is larger than the sum of its proper divisors (144042470396).

161182816516 is a wasteful number, since it uses less digits than its factorization.

161182816516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34540 (or 34538 counting only the distinct ones).

The product of its digits is 138240, while the sum is 46.

The spelling of 161182816516 in words is "one hundred sixty-one billion, one hundred eighty-two million, eight hundred sixteen thousand, five hundred sixteen".