161065552320306 has 32 divisors (see below), whose sum is σ = 357970601539200. Its totient is φ = 53681444649360.

The previous prime is 161065552320247. The next prime is 161065552320307. The reversal of 161065552320306 is 603023255560161.

161065552320306 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 65 + 55 + 232 + 0 + 306 = 666.

161065552320306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161065552320306² (a number of 29 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 196052701 + ... + 196872528.

It is an arithmetic number, because the mean of its divisors is an integer number (11186581298100).

Almost surely, 2^{161065552320306} is an apocalyptic number.

161065552320306 is an abundant number, since it is smaller than the sum of its proper divisors (196905049218894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161065552320306 is a wasteful number, since it uses less digits than its factorization.

161065552320306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392932831 (or 392932825 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 161065552320306 in words is "one hundred sixty-one trillion, sixty-five billion, five hundred fifty-two million, three hundred twenty thousand, three hundred six".