165616116104 has 8 divisors (see below), whose sum is σ = 310530217710. Its totient is φ = 82808058048.

The previous prime is 165616116101. The next prime is 165616116137. The reversal of 165616116104 is 401611616561.

It is a happy number.

165616116104 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 only one way, i.e., 153270684004 + 12345432100 = 391498^2 + 111110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (165616116101) 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 as a sum of consecutive naturals, namely, 10351007249 + ... + 10351007264.

Almost surely, 2^165616116104 is an apocalyptic number.

It is an amenable number.

165616116104 is a deficient number, since it is larger than the sum of its proper divisors (144914101606).

165616116104 is a wasteful number, since it uses less digits than its factorization.

165616116104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20702014519 (or 20702014515 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 165616116104 in words is "one hundred sixty-five billion, six hundred sixteen million, one hundred sixteen thousand, one hundred four".