1648636006 has 4 divisors (see below), whose sum is σ = 2472954012. Its totient is φ = 824318002.

The previous prime is 1648635983. The next prime is 1648636019. The reversal of 1648636006 is 6006368461.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1648636006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412159000 + ... + 412159003.

It is an arithmetic number, because the mean of its divisors is an integer number (618238503).

Almost surely, 2^1648636006 is an apocalyptic number.

1648636006 is a deficient number, since it is larger than the sum of its proper divisors (824318006).

1648636006 is an equidigital number, since it uses as much as digits as its factorization.

1648636006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824318005.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 1648636006 is about 40603.3989463936. The cubic root of 1648636006 is about 1181.3400475721.

The spelling of 1648636006 in words is "one billion, six hundred forty-eight million, six hundred thirty-six thousand, six".