161184340449 has 48 divisors (see below), whose sum is σ = 263859785280. Its totient is φ = 97514876160.

The previous prime is 161184340433. The next prime is 161184340501. The reversal of 161184340449 is 944043481161.

161184340449 is a `hidden beast` number, since 1 + 61 + 184 + 3 + 404 + 4 + 9 = 666.

It is not a de Polignac number, because 161184340449 - 2⁴ = 161184340433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161184340349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1467949 + ... + 1573925.

It is an arithmetic number, because the mean of its divisors is an integer number (5497078860).

Almost surely, 2^161184340449 is an apocalyptic number.

It is an amenable number.

161184340449 is a deficient number, since it is larger than the sum of its proper divisors (102675444831).

161184340449 is a wasteful number, since it uses less digits than its factorization.

161184340449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106572 (or 106560 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 161184340449 in words is "one hundred sixty-one billion, one hundred eighty-four million, three hundred forty thousand, four hundred forty-nine".