165365849104 has 15 divisors (see below), whose sum is σ = 320399484223. Its totient is φ = 82682111248.

The previous prime is 165365849093. The next prime is 165365849107. The reversal of 165365849104 is 401948563561.

It is a happy number.

The square root of 165365849104 is 406652.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165365849107) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1575777 + ... + 1677439.

Almost surely, 2^165365849104 is an apocalyptic number.

165365849104 is the 406652-nd square number.

It is an amenable number.

165365849104 is a deficient number, since it is larger than the sum of its proper divisors (155033635119).

165365849104 is an frugal number, since it uses more digits than its factorization.

165365849104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203334 (or 101665 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 165365849104 in words is "one hundred sixty-five billion, three hundred sixty-five million, eight hundred forty-nine thousand, one hundred four".