165067561147 has 4 divisors (see below), whose sum is σ = 170392321216. Its totient is φ = 159742801080.

The previous prime is 165067561103. The next prime is 165067561159. The reversal of 165067561147 is 741165760561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741165760561 = 853 ⋅868893037.

It is a cyclic number.

It is not a de Polignac number, because 165067561147 - 2²³ = 165059172539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165067561147.

It is not an unprimeable number, because it can be changed into a prime (165067561177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662379988 + ... + 2662380049.

It is an arithmetic number, because the mean of its divisors is an integer number (42598080304).

Almost surely, 2^165067561147 is an apocalyptic number.

165067561147 is a deficient number, since it is larger than the sum of its proper divisors (5324760069).

165067561147 is an equidigital number, since it uses as much as digits as its factorization.

165067561147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324760068.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 165067561147 in words is "one hundred sixty-five billion, sixty-seven million, five hundred sixty-one thousand, one hundred forty-seven".