161051248833 has 4 divisors (see below), whose sum is σ = 214734998448. Its totient is φ = 107367499220.

The previous prime is 161051248829. The next prime is 161051248847. The reversal of 161051248833 is 338842150161.

It is a happy number.

161051248833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161051248833 - 2² = 161051248829 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161051248873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26841874803 + ... + 26841874808.

It is an arithmetic number, because the mean of its divisors is an integer number (53683749612).

Almost surely, 2^161051248833 is an apocalyptic number.

It is an amenable number.

161051248833 is a deficient number, since it is larger than the sum of its proper divisors (53683749615).

161051248833 is an equidigital number, since it uses as much as digits as its factorization.

161051248833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53683749614.

The product of its (nonzero) digits is 138240, while the sum is 42.

Adding to 161051248833 its reverse (338842150161), we get a palindrome (499893398994).

The spelling of 161051248833 in words is "one hundred sixty-one billion, fifty-one million, two hundred forty-eight thousand, eight hundred thirty-three".