161265145330 has 8 divisors (see below), whose sum is σ = 290277261612. Its totient is φ = 64506058128.

The previous prime is 161265145319. The next prime is 161265145333. The reversal of 161265145330 is 33541562161.

161265145330 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 2 ways, for example, as 160328968921 + 936176409 = 400411^2 + 30597^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 161265145330.

It is not an unprimeable number, because it can be changed into a prime (161265145333) 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 3 ways as a sum of consecutive naturals, for example, 8063257257 + ... + 8063257276.

Almost surely, 2^161265145330 is an apocalyptic number.

161265145330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161265145330 is a deficient number, since it is larger than the sum of its proper divisors (129012116282).

161265145330 is a wasteful number, since it uses less digits than its factorization.

161265145330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16126514540.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 161265145330 in words is "one hundred sixty-one billion, two hundred sixty-five million, one hundred forty-five thousand, three hundred thirty".