664135149211 has 16 divisors (see below), whose sum is σ = 706782028320. Its totient is φ = 624052450560.

The previous prime is 664135149169. The next prime is 664135149281. The reversal of 664135149211 is 112941531466.

It is a de Polignac number, because none of the positive numbers 2^k-664135149211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664135149281) 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, 2921776 + ... + 3140866.

It is an arithmetic number, because the mean of its divisors is an integer number (44173876770).

Almost surely, 2^664135149211 is an apocalyptic number.

664135149211 is a deficient number, since it is larger than the sum of its proper divisors (42646879109).

664135149211 is an equidigital number, since it uses as much as digits as its factorization.

664135149211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219759 (or 219725 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The spelling of 664135149211 in words is "six hundred sixty-four billion, one hundred thirty-five million, one hundred forty-nine thousand, two hundred eleven".