160661838649 has 16 divisors (see below), whose sum is σ = 178072977600. Its totient is φ = 144033062976.

The previous prime is 160661838643. The next prime is 160661838653. The reversal of 160661838649 is 946838166061.

It is a cyclic number.

It is not a de Polignac number, because 160661838649 - 2³⁷ = 23222885177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 160661838593 and 160661838602.

It is not an unprimeable number, because it can be changed into a prime (160661838643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1198194 + ... + 1325515.

It is an arithmetic number, because the mean of its divisors is an integer number (11129561100).

Almost surely, 2^160661838649 is an apocalyptic number.

It is an amenable number.

160661838649 is a deficient number, since it is larger than the sum of its proper divisors (17411138951).

160661838649 is a wasteful number, since it uses less digits than its factorization.

160661838649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523864.

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 160661838649 in words is "one hundred sixty billion, six hundred sixty-one million, eight hundred thirty-eight thousand, six hundred forty-nine".