165308180644 has 12 divisors (see below), whose sum is σ = 289294314624. Its totient is φ = 82652662184.

The previous prime is 165308180633. The next prime is 165308180657. The reversal of 165308180644 is 446081803561.

It is a junction number, because it is equal to n+sod(n) for n = 165308180594 and 165308180603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71164 + ... + 579379.

It is an arithmetic number, because the mean of its divisors is an integer number (24107859552).

Almost surely, 2^165308180644 is an apocalyptic number.

It is an amenable number.

165308180644 is a deficient number, since it is larger than the sum of its proper divisors (123986133980).

165308180644 is a wasteful number, since it uses less digits than its factorization.

165308180644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714074 (or 714072 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 165308180644 in words is "one hundred sixty-five billion, three hundred eight million, one hundred eighty thousand, six hundred forty-four".