21046335160 has 16 divisors (see below), whose sum is σ = 47354254200. Its totient is φ = 8418534048.

The previous prime is 21046335133. The next prime is 21046335179. The reversal of 21046335160 is 6153364012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263079150 + ... + 263079229.

Almost surely, 2^21046335160 is an apocalyptic number.

21046335160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21046335160 is an abundant number, since it is smaller than the sum of its proper divisors (26307919040).

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

21046335160 is a wasteful number, since it uses less digits than its factorization.

21046335160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526158390 (or 526158386 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 21046335160 its reverse (6153364012), we get a palindrome (27199699172).

The spelling of 21046335160 in words is "twenty-one billion, forty-six million, three hundred thirty-five thousand, one hundred sixty".