165122465652125 has 8 divisors (see below), whose sum is σ = 206072837134008. Its totient is φ = 132097972521600.

The previous prime is 165122465652119. The next prime is 165122465652241. The reversal of 165122465652125 is 521256564221561.

It can be written as a sum of positive squares in 4 ways, for example, as 33875449748644 + 131247015903481 = 5820262^2 + 11456309^2 .

It is not a de Polignac number, because 165122465652125 - 2⁶ = 165122465652061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660489862484 + ... + 660489862733.

It is an arithmetic number, because the mean of its divisors is an integer number (25759104641751).

Almost surely, 2^{165122465652125} is an apocalyptic number.

It is an amenable number.

165122465652125 is a deficient number, since it is larger than the sum of its proper divisors (40950371481883).

165122465652125 is an equidigital number, since it uses as much as digits as its factorization.

165122465652125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320979725232 (or 1320979725222 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 53.

The spelling of 165122465652125 in words is "one hundred sixty-five trillion, one hundred twenty-two billion, four hundred sixty-five million, six hundred fifty-two thousand, one hundred twenty-five".