161065552320352 has 48 divisors (see below), whose sum is σ = 317195922661632. Its totient is φ = 80507861274240.

The previous prime is 161065552320307. The next prime is 161065552320353. The reversal of 161065552320352 is 253023255560161.

It is a super-2 number, since 2×161065552320352² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161065552320353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662014683 + ... + 1662111589.

It is an arithmetic number, because the mean of its divisors is an integer number (6608248388784).

Almost surely, 2^{161065552320352} is an apocalyptic number.

It is an amenable number.

161065552320352 is a deficient number, since it is larger than the sum of its proper divisors (156130370341280).

161065552320352 is a wasteful number, since it uses less digits than its factorization.

161065552320352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112451 (or 112443 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 161065552320352 in words is "one hundred sixty-one trillion, sixty-five billion, five hundred fifty-two million, three hundred twenty thousand, three hundred fifty-two".