21045333051255 has 8 divisors (see below), whose sum is σ = 33672532882032. Its totient is φ = 11224177627328.

The previous prime is 21045333051203. The next prime is 21045333051313. The reversal of 21045333051255 is 55215033354012.

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

It is a cyclic number.

It is not a de Polignac number, because 21045333051255 - 2³⁸ = 20770455144311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701511101694 + ... + 701511101723.

It is an arithmetic number, because the mean of its divisors is an integer number (4209066610254).

Almost surely, 2^{21045333051255} is an apocalyptic number.

21045333051255 is a deficient number, since it is larger than the sum of its proper divisors (12627199830777).

21045333051255 is a wasteful number, since it uses less digits than its factorization.

21045333051255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403022203425.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 21045333051255 in words is "twenty-one trillion, forty-five billion, three hundred thirty-three million, fifty-one thousand, two hundred fifty-five".