1646632006 has 8 divisors (see below), whose sum is σ = 2555118720. Its totient is φ = 794925768.

The previous prime is 1646631983. The next prime is 1646632021. The reversal of 1646632006 is 6002366461.

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

It is a super-2 number, since 2×1646632006² = 5422793926367168072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14195046 + ... + 14195161.

It is an arithmetic number, because the mean of its divisors is an integer number (319389840).

Almost surely, 2^1646632006 is an apocalyptic number.

1646632006 is a deficient number, since it is larger than the sum of its proper divisors (908486714).

1646632006 is a wasteful number, since it uses less digits than its factorization.

1646632006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28390238.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 1646632006 is about 40578.7137055871. The cubic root of 1646632006 is about 1180.8611940778.

Adding to 1646632006 its reverse (6002366461), we get a palindrome (7648998467).

The spelling of 1646632006 in words is "one billion, six hundred forty-six million, six hundred thirty-two thousand, six".