1664533422 has 64 divisors (see below), whose sum is σ = 3752179200. Its totient is φ = 546923520.

The previous prime is 1664533421. The next prime is 1664533459. The reversal of 1664533422 is 2243354661.

1664533422 is a `hidden beast` number, since 1 + 6 + 645 + 3 + 3 + 4 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664533421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1180654 + ... + 1182062.

It is an arithmetic number, because the mean of its divisors is an integer number (58627800).

Almost surely, 2^1664533422 is an apocalyptic number.

1664533422 is an abundant number, since it is smaller than the sum of its proper divisors (2087645778).

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

1664533422 is a wasteful number, since it uses less digits than its factorization.

1664533422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1712 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 1664533422 is about 40798.6938761525. The cubic root of 1664533422 is about 1185.1250372787.

The spelling of 1664533422 in words is "one billion, six hundred sixty-four million, five hundred thirty-three thousand, four hundred twenty-two".