165145661101330 has 64 divisors (see below), whose sum is σ = 385117007304960. Its totient is φ = 49515043785984.

The previous prime is 165145661101283. The next prime is 165145661101363. The reversal of 165145661101330 is 33101166541561.

165145661101330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4775739249 + ... + 4775773828.

It is an arithmetic number, because the mean of its divisors is an integer number (6017453239140).

Almost surely, 2^{165145661101330} is an apocalyptic number.

165145661101330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165145661101330 is an abundant number, since it is smaller than the sum of its proper divisors (219971346203630).

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

165145661101330 is a wasteful number, since it uses less digits than its factorization.

165145661101330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9551513123.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 165145661101330 in words is "one hundred sixty-five trillion, one hundred forty-five billion, six hundred sixty-one million, one hundred one thousand, three hundred thirty".