1013211664 has 20 divisors (see below), whose sum is σ = 1968669756. Its totient is φ = 505167872.

The previous prime is 1013211659. The next prime is 1013211673. The reversal of 1013211664 is 4661123101.

It can be written as a sum of positive squares in 2 ways, for example, as 200505600 + 812706064 = 14160^2 + 28508^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 84049 + ... + 95344.

Almost surely, 2^1013211664 is an apocalyptic number.

It is an amenable number.

1013211664 is a deficient number, since it is larger than the sum of its proper divisors (955458092).

1013211664 is a wasteful number, since it uses less digits than its factorization.

1013211664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179754 (or 179748 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1013211664 is about 31830.9859099589. The cubic root of 1013211664 is about 1004.3846348787.

Adding to 1013211664 its reverse (4661123101), we get a palindrome (5674334765).

The spelling of 1013211664 in words is "one billion, thirteen million, two hundred eleven thousand, six hundred sixty-four".