201344041465666 has 16 divisors (see below), whose sum is σ = 329472397441440. Its totient is φ = 91519927295680.

The previous prime is 201344041465661. The next prime is 201344041465681. The reversal of 201344041465666 is 666564140443102.

It is not an unprimeable number, because it can be changed into a prime (201344041465661) 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, 21120285 + ... + 29133391.

It is an arithmetic number, because the mean of its divisors is an integer number (20592024840090).

Almost surely, 2^{201344041465666} is an apocalyptic number.

201344041465666 is a deficient number, since it is larger than the sum of its proper divisors (128128355975774).

201344041465666 is a wasteful number, since it uses less digits than its factorization.

201344041465666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155249.

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 201344041465666 in words is "two hundred one trillion, three hundred forty-four billion, forty-one million, four hundred sixty-five thousand, six hundred sixty-six".