21114664535 has 8 divisors (see below), whose sum is σ = 25349060160. Its totient is φ = 16884089824.

The previous prime is 21114664523. The next prime is 21114664537. The reversal of 21114664535 is 53546641112.

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 21114664535 - 2²⁰ = 21113615959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114664537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943055 + ... + 965184.

It is an arithmetic number, because the mean of its divisors is an integer number (3168632520).

Almost surely, 2^21114664535 is an apocalyptic number.

21114664535 is a deficient number, since it is larger than the sum of its proper divisors (4234395625).

21114664535 is a wasteful number, since it uses less digits than its factorization.

21114664535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910457.

The product of its digits is 86400, while the sum is 38.

The spelling of 21114664535 in words is "twenty-one billion, one hundred fourteen million, six hundred sixty-four thousand, five hundred thirty-five".