1664341467 has 8 divisors (see below), whose sum is σ = 2227372560. Its totient is φ = 1105435680.

The previous prime is 1664341447. The next prime is 1664341489. The reversal of 1664341467 is 7641434661.

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

It is not a de Polignac number, because 1664341467 - 2¹² = 1664337371 is a prime.

It is a Smith number, since the sum of its digits (42) 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 (1664341447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030384 + ... + 1031997.

It is an arithmetic number, because the mean of its divisors is an integer number (278421570).

Almost surely, 2^1664341467 is an apocalyptic number.

1664341467 is a deficient number, since it is larger than the sum of its proper divisors (563031093).

1664341467 is a wasteful number, since it uses less digits than its factorization.

1664341467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062653.

The product of its digits is 290304, while the sum is 42.

The square root of 1664341467 is about 40796.3413433117. The cubic root of 1664341467 is about 1185.0794790823.

The spelling of 1664341467 in words is "one billion, six hundred sixty-four million, three hundred forty-one thousand, four hundred sixty-seven".