1664554334 has 8 divisors (see below), whose sum is σ = 2497029768. Its totient is φ = 832211080.

The previous prime is 1664554327. The next prime is 1664554343. The reversal of 1664554334 is 4334554661.

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

It is a super-2 number, since 2×1664554334² = 5541482261676367112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1664554291 and 1664554300.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9284 + ... + 58440.

It is an arithmetic number, because the mean of its divisors is an integer number (312128721).

Almost surely, 2^1664554334 is an apocalyptic number.

1664554334 is a deficient number, since it is larger than the sum of its proper divisors (832475434).

1664554334 is a wasteful number, since it uses less digits than its factorization.

1664554334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66090.

The product of its digits is 518400, while the sum is 41.

The square root of 1664554334 is about 40798.9501580617. The cubic root of 1664554334 is about 1185.1300002773.

The spelling of 1664554334 in words is "one billion, six hundred sixty-four million, five hundred fifty-four thousand, three hundred thirty-four".