165325752105437 has 64 divisors (see below), whose sum is σ = 208597102571520. Its totient is φ = 128346731599680.

The previous prime is 165325752105361. The next prime is 165325752105443. The reversal of 165325752105437 is 734501257523561.

It is not a de Polignac number, because 165325752105437 - 2¹⁶ = 165325752039901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165325752105467) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3214739918 + ... + 3214791344.

It is an arithmetic number, because the mean of its divisors is an integer number (3259329727680).

Almost surely, 2^{165325752105437} is an apocalyptic number.

It is an amenable number.

165325752105437 is a deficient number, since it is larger than the sum of its proper divisors (43271350466083).

165325752105437 is an equidigital number, since it uses as much as digits as its factorization.

165325752105437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52743 (or 52721 counting only the distinct ones).

The product of its (nonzero) digits is 26460000, while the sum is 56.

The spelling of 165325752105437 in words is "one hundred sixty-five trillion, three hundred twenty-five billion, seven hundred fifty-two million, one hundred five thousand, four hundred thirty-seven".