161848337784189 has 16 divisors (see below), whose sum is σ = 246639865753728. Its totient is φ = 92479579238592.

The previous prime is 161848337783987. The next prime is 161848337784193. The reversal of 161848337784189 is 981487733848161.

It is not a de Polignac number, because 161848337784189 - 2⁸ = 161848337783933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161848337784689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215666902 + ... + 216416055.

It is an arithmetic number, because the mean of its divisors is an integer number (15414991609608).

Almost surely, 2^{161848337784189} is an apocalyptic number.

It is an amenable number.

161848337784189 is a deficient number, since it is larger than the sum of its proper divisors (84791527969539).

161848337784189 is a wasteful number, since it uses less digits than its factorization.

161848337784189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432100804.

The product of its digits is 1560674304, while the sum is 78.

The spelling of 161848337784189 in words is "one hundred sixty-one trillion, eight hundred forty-eight billion, three hundred thirty-seven million, seven hundred eighty-four thousand, one hundred eighty-nine".