160818323213661 has 4 divisors (see below), whose sum is σ = 214424430951552. Its totient is φ = 107212215475772.

The previous prime is 160818323213651. The next prime is 160818323213741. The reversal of 160818323213661 is 166312323818061.

160818323213661 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 160818323213661 - 2⁵ = 160818323213629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160818323213641) 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, 26803053868941 + ... + 26803053868946.

It is an arithmetic number, because the mean of its divisors is an integer number (53606107737888).

Almost surely, 2^{160818323213661} is an apocalyptic number.

It is an amenable number.

160818323213661 is a deficient number, since it is larger than the sum of its proper divisors (53606107737891).

160818323213661 is an equidigital number, since it uses as much as digits as its factorization.

160818323213661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53606107737890.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 160818323213661 in words is "one hundred sixty trillion, eight hundred eighteen billion, three hundred twenty-three million, two hundred thirteen thousand, six hundred sixty-one".