165443865706 has 8 divisors (see below), whose sum is σ = 283618055520. Its totient is φ = 70904513868.

The previous prime is 165443865677. The next prime is 165443865707. The reversal of 165443865706 is 607568344561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (165443865707) 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, 5908709476 + ... + 5908709503.

It is an arithmetic number, because the mean of its divisors is an integer number (35452256940).

Almost surely, 2^165443865706 is an apocalyptic number.

165443865706 is a deficient number, since it is larger than the sum of its proper divisors (118174189814).

165443865706 is a wasteful number, since it uses less digits than its factorization.

165443865706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11817418988.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 165443865706 in words is "one hundred sixty-five billion, four hundred forty-three million, eight hundred sixty-five thousand, seven hundred six".