165704371436 has 6 divisors (see below), whose sum is σ = 289982650020. Its totient is φ = 82852185716.

The previous prime is 165704371421. The next prime is 165704371453. The reversal of 165704371436 is 634173407561.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20713046426 + ... + 20713046433.

It is an arithmetic number, because the mean of its divisors is an integer number (48330441670).

Almost surely, 2^165704371436 is an apocalyptic number.

It is an amenable number.

165704371436 is a deficient number, since it is larger than the sum of its proper divisors (124278278584).

165704371436 is a wasteful number, since it uses less digits than its factorization.

165704371436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41426092863 (or 41426092861 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 47.

Adding to 165704371436 its reverse (634173407561), we get a palindrome (799877778997).

The spelling of 165704371436 in words is "one hundred sixty-five billion, seven hundred four million, three hundred seventy-one thousand, four hundred thirty-six".