165643153322 has 8 divisors (see below), whose sum is σ = 248467310400. Its totient is φ = 82820716524.

The previous prime is 165643153303. The next prime is 165643153331. The reversal of 165643153322 is 223351346561.

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

It is a self number, because there is not a number n which added to its sum of digits gives 165643153322.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153872 + ... + 595787.

It is an arithmetic number, because the mean of its divisors is an integer number (31058413800).

Almost surely, 2^165643153322 is an apocalyptic number.

165643153322 is a deficient number, since it is larger than the sum of its proper divisors (82824157078).

165643153322 is a wasteful number, since it uses less digits than its factorization.

165643153322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860140.

The product of its digits is 388800, while the sum is 41.

Adding to 165643153322 its reverse (223351346561), we get a palindrome (388994499883).

The spelling of 165643153322 in words is "one hundred sixty-five billion, six hundred forty-three million, one hundred fifty-three thousand, three hundred twenty-two".