165633113642 has 16 divisors (see below), whose sum is σ = 249092392200. Its totient is φ = 82602374400.

The previous prime is 165633113561. The next prime is 165633113651. The reversal of 165633113642 is 246311336561.

It can be written as a sum of positive squares in 4 ways, for example, as 145596428041 + 20036685601 = 381571^2 + 141551^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 165633113642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10299584 + ... + 10315652.

Almost surely, 2^165633113642 is an apocalyptic number.

165633113642 is a deficient number, since it is larger than the sum of its proper divisors (83459278558).

165633113642 is a wasteful number, since it uses less digits than its factorization.

165633113642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29081.

The product of its digits is 233280, while the sum is 41.

The spelling of 165633113642 in words is "one hundred sixty-five billion, six hundred thirty-three million, one hundred thirteen thousand, six hundred forty-two".