165210015601444 has 18 divisors (see below), whose sum is σ = 317790339928502. Its totient is φ = 75095461636800.

The previous prime is 165210015601429. The next prime is 165210015601493. The reversal of 165210015601444 is 444106510012561.

165210015601444 is digitally balanced in base 3, 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., 162707576353344 + 2502439248100 = 12755688^2 + 1581910^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165210015601397 and 165210015601406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170671503237 + ... + 170671504204.

Almost surely, 2^{165210015601444} is an apocalyptic number.

It is an amenable number.

165210015601444 is a deficient number, since it is larger than the sum of its proper divisors (152580324327058).

165210015601444 is a wasteful number, since it uses less digits than its factorization.

165210015601444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341343007467 (or 341343007454 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 165210015601444 in words is "one hundred sixty-five trillion, two hundred ten billion, fifteen million, six hundred one thousand, four hundred forty-four".