161065552320308 has 24 divisors (see below), whose sum is σ = 289522684168872. Its totient is φ = 78345386953344.

The previous prime is 161065552320307. The next prime is 161065552320353. The reversal of 161065552320308 is 803023255560161.

It is a happy number.

161065552320308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 63216301953424 + 97849250366884 = 7950868^2 + 9891878^2 .

It is a super-2 number, since 2×161065552320308² (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 (161065552320307) 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, 74117591 + ... + 76259742.

It is an arithmetic number, because the mean of its divisors is an integer number (12063445173703).

Almost surely, 2^{161065552320308} is an apocalyptic number.

It is an amenable number.

161065552320308 is a deficient number, since it is larger than the sum of its proper divisors (128457131848564).

161065552320308 is a wasteful number, since it uses less digits than its factorization.

161065552320308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150384611 (or 150384609 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 161065552320308 in words is "one hundred sixty-one trillion, sixty-five billion, five hundred fifty-two million, three hundred twenty thousand, three hundred eight".