165671733 has 16 divisors (see below), whose sum is σ = 227448320. Its totient is φ = 107203824.

The previous prime is 165671731. The next prime is 165671741. The reversal of 165671733 is 337176561.

It is not a de Polignac number, because 165671733 - 2¹ = 165671731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165671691 and 165671700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165671731) 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 in 15 ways as a sum of consecutive naturals, for example, 17088 + ... + 24966.

It is an arithmetic number, because the mean of its divisors is an integer number (14215520).

Almost surely, 2^165671733 is an apocalyptic number.

It is an amenable number.

165671733 is a deficient number, since it is larger than the sum of its proper divisors (61776587).

165671733 is a wasteful number, since it uses less digits than its factorization.

165671733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088.

The product of its digits is 79380, while the sum is 39.

The square root of 165671733 is about 12871.3531922638. The cubic root of 165671733 is about 549.2239556622.

The spelling of 165671733 in words is "one hundred sixty-five million, six hundred seventy-one thousand, seven hundred thirty-three".