21060132724905 has 8 divisors (see below), whose sum is σ = 33696212359872. Its totient is φ = 11232070786608.

The previous prime is 21060132724879. The next prime is 21060132724933. The reversal of 21060132724905 is 50942723106012.

It is a happy number.

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

It is not a de Polignac number, because 21060132724905 - 2²⁶ = 21060065616041 is a prime.

It is a super-2 number, since 2×21060132724905² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702004424149 + ... + 702004424178.

It is an arithmetic number, because the mean of its divisors is an integer number (4212026544984).

Almost surely, 2^{21060132724905} is an apocalyptic number.

It is an amenable number.

21060132724905 is a deficient number, since it is larger than the sum of its proper divisors (12636079634967).

21060132724905 is a wasteful number, since it uses less digits than its factorization.

21060132724905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404008848335.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 21060132724905 in words is "twenty-one trillion, sixty billion, one hundred thirty-two million, seven hundred twenty-four thousand, nine hundred five".