165616615150 has 48 divisors (see below), whose sum is σ = 356510039040. Its totient is φ = 56064060000.

The previous prime is 165616615147. The next prime is 165616615159. The reversal of 165616615150 is 51516616561.

It is a junction number, because it is equal to n+sod(n) for n = 165616615097 and 165616615106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165616615159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2967226 + ... + 3022525.

It is an arithmetic number, because the mean of its divisors is an integer number (7427292480).

Almost surely, 2^165616615150 is an apocalyptic number.

165616615150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165616615150 is an abundant number, since it is smaller than the sum of its proper divisors (190893423890).

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

165616615150 is a wasteful number, since it uses less digits than its factorization.

165616615150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989849 (or 5989844 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 165616615150 in words is "one hundred sixty-five billion, six hundred sixteen million, six hundred fifteen thousand, one hundred fifty".