201340664099 has 16 divisors (see below), whose sum is σ = 206269797888. Its totient is φ = 196439420832.

The previous prime is 201340664093. The next prime is 201340664149. The reversal of 201340664099 is 990466043102.

It is a happy number.

It is a Cunningham number, because it is equal to 448710²-1.

It is a cyclic number.

It is not a de Polignac number, because 201340664099 - 2³² = 197045696803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201340664093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21084644 + ... + 21094190.

It is an arithmetic number, because the mean of its divisors is an integer number (12891862368).

Almost surely, 2^201340664099 is an apocalyptic number.

201340664099 is a deficient number, since it is larger than the sum of its proper divisors (4929133789).

201340664099 is an equidigital number, since it uses as much as digits as its factorization.

201340664099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10954.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 201340664099 in words is "two hundred one billion, three hundred forty million, six hundred sixty-four thousand, ninety-nine".