165007693 has 4 divisors (see below), whose sum is σ = 165528540. Its totient is φ = 164486848.

The previous prime is 165007649. The next prime is 165007721. The reversal of 165007693 is 396700561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 396700561 = 337 ⋅1177153.

It can be written as a sum of positive squares in 2 ways, for example, as 43059844 + 121947849 = 6562^2 + 11043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165007693 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 (165007613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259948 + ... + 260581.

It is an arithmetic number, because the mean of its divisors is an integer number (41382135).

Almost surely, 2^165007693 is an apocalyptic number.

It is an amenable number.

165007693 is a deficient number, since it is larger than the sum of its proper divisors (520847).

165007693 is an equidigital number, since it uses as much as digits as its factorization.

165007693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520846.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 165007693 is about 12845.5320247937. The cubic root of 165007693 is about 548.4891792758.

The spelling of 165007693 in words is "one hundred sixty-five million, seven thousand, six hundred ninety-three".