1664349864234 has 8 divisors (see below), whose sum is σ = 3328699728480. Its totient is φ = 554783288076.

The previous prime is 1664349864223. The next prime is 1664349864239. The reversal of 1664349864234 is 4324689434661.

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

1664349864234 is an admirable number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1664349864239) 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, 138695822014 + ... + 138695822025.

It is an arithmetic number, because the mean of its divisors is an integer number (416087466060).

Almost surely, 2^{1664349864234} is an apocalyptic number.

1664349864234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1664349864234 is a wasteful number, since it uses less digits than its factorization.

1664349864234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277391644044.

The product of its digits is 71663616, while the sum is 60.

The spelling of 1664349864234 in words is "one trillion, six hundred sixty-four billion, three hundred forty-nine million, eight hundred sixty-four thousand, two hundred thirty-four".