266043450161 has 8 divisors (see below), whose sum is σ = 269052917760. Its totient is φ = 263034431968.

The previous prime is 266043450151. The next prime is 266043450163. The reversal of 266043450161 is 161054340662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266043450161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266043450163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159220 + ... + 1369626.

It is an arithmetic number, because the mean of its divisors is an integer number (33631614720).

Almost surely, 2^266043450161 is an apocalyptic number.

It is an amenable number.

266043450161 is a deficient number, since it is larger than the sum of its proper divisors (3009467599).

266043450161 is a wasteful number, since it uses less digits than its factorization.

266043450161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224703.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 266043450161 in words is "two hundred sixty-six billion, forty-three million, four hundred fifty thousand, one hundred sixty-one".