1001018664 has 48 divisors (see below), whose sum is σ = 2720795220. Its totient is φ = 332478720.

The previous prime is 1001018653. The next prime is 1001018773. The reversal of 1001018664 is 4668101001.

1001018664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 997928100 + 3090564 = 31590^2 + 1758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4507 + ... + 44970.

Almost surely, 2^1001018664 is an apocalyptic number.

It is an amenable number.

1001018664 is an abundant number, since it is smaller than the sum of its proper divisors (1719776556).

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

1001018664 is a wasteful number, since it uses less digits than its factorization.

1001018664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49770 (or 49763 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1001018664 is about 31638.8789940478. The cubic root of 1001018664 is about 1000.3394394345.

Adding to 1001018664 its reverse (4668101001), we get a palindrome (5669119665).

The spelling of 1001018664 in words is "one billion, one million, eighteen thousand, six hundred sixty-four".