161238484843 has 4 divisors (see below), whose sum is σ = 161269443880. Its totient is φ = 161207525808.

The previous prime is 161238484807. The next prime is 161238484853. The reversal of 161238484843 is 348484832161.

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 161238484843 - 2⁹ = 161238484331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161238484853) 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, 15471705 + ... + 15482122.

It is an arithmetic number, because the mean of its divisors is an integer number (40317360970).

Almost surely, 2^161238484843 is an apocalyptic number.

161238484843 is a deficient number, since it is larger than the sum of its proper divisors (30959037).

161238484843 is an equidigital number, since it uses as much as digits as its factorization.

161238484843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30959036.

The product of its digits is 3538944, while the sum is 52.

The spelling of 161238484843 in words is "one hundred sixty-one billion, two hundred thirty-eight million, four hundred eighty-four thousand, eight hundred forty-three".