161838702335 has 4 divisors (see below), whose sum is σ = 194206442808. Its totient is φ = 129470961864.

The previous prime is 161838702323. The next prime is 161838702349. The reversal of 161838702335 is 533207838161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161838702335 - 2²⁶ = 161771593471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161838702335.

It is a congruent number.

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, 16183870229 + ... + 16183870238.

It is an arithmetic number, because the mean of its divisors is an integer number (48551610702).

Almost surely, 2^161838702335 is an apocalyptic number.

161838702335 is a deficient number, since it is larger than the sum of its proper divisors (32367740473).

161838702335 is an equidigital number, since it uses as much as digits as its factorization.

161838702335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32367740472.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 161838702335 in words is "one hundred sixty-one billion, eight hundred thirty-eight million, seven hundred two thousand, three hundred thirty-five".