165151996 has 12 divisors (see below), whose sum is σ = 289321648. Its totient is φ = 82488672.

The previous prime is 165151981. The next prime is 165151997. The reversal of 165151996 is 699151561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165151997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17481 + ... + 25216.

Almost surely, 2^165151996 is an apocalyptic number.

It is an amenable number.

165151996 is a deficient number, since it is larger than the sum of its proper divisors (124169652).

165151996 is a wasteful number, since it uses less digits than its factorization.

165151996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43668 (or 43666 counting only the distinct ones).

The product of its digits is 72900, while the sum is 43.

The square root of 165151996 is about 12851.1476530308. The cubic root of 165151996 is about 548.6490214653.

The spelling of 165151996 in words is "one hundred sixty-five million, one hundred fifty-one thousand, nine hundred ninety-six".