165531710104 has 32 divisors (see below), whose sum is σ = 320518656000. Its totient is φ = 80062313760.

The previous prime is 165531710101. The next prime is 165531710107. The reversal of 165531710104 is 401017135561.

It is an interprime number because it is at equal distance from previous prime (165531710101) and next prime (165531710107).

It is a self number, because there is not a number n which added to its sum of digits gives 165531710104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165531710101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455839 + ... + 734065.

It is an arithmetic number, because the mean of its divisors is an integer number (10016208000).

Almost surely, 2^165531710104 is an apocalyptic number.

It is an amenable number.

165531710104 is a deficient number, since it is larger than the sum of its proper divisors (154986945896).

165531710104 is a wasteful number, since it uses less digits than its factorization.

165531710104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280663 (or 280659 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

Adding to 165531710104 its reverse (401017135561), we get a palindrome (566548845665).

The spelling of 165531710104 in words is "one hundred sixty-five billion, five hundred thirty-one million, seven hundred ten thousand, one hundred four".