165610184147 has 4 divisors (see below), whose sum is σ = 172810626960. Its totient is φ = 158409741336.

The previous prime is 165610184137. The next prime is 165610184161. The reversal of 165610184147 is 741481016561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741481016561 = 61 ⋅12155426501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165610184147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165610184098 and 165610184107.

It is not an unprimeable number, because it can be changed into a prime (165610184137) 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, 3600221372 + ... + 3600221417.

It is an arithmetic number, because the mean of its divisors is an integer number (43202656740).

Almost surely, 2^165610184147 is an apocalyptic number.

165610184147 is a deficient number, since it is larger than the sum of its proper divisors (7200442813).

165610184147 is an equidigital number, since it uses as much as digits as its factorization.

165610184147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200442812.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 165610184147 in words is "one hundred sixty-five billion, six hundred ten million, one hundred eighty-four thousand, one hundred forty-seven".