21058341145 has 16 divisors (see below), whose sum is σ = 25449891840. Its totient is φ = 16727083200.

The previous prime is 21058341121. The next prime is 21058341181. The reversal of 21058341145 is 54114385012.

It is not a de Polignac number, because 21058341145 - 2¹¹ = 21058339097 is a prime.

It is a super-2 number, since 2×21058341145² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21058341145.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 496276 + ... + 537034.

It is an arithmetic number, because the mean of its divisors is an integer number (1590618240).

Almost surely, 2^21058341145 is an apocalyptic number.

It is an amenable number.

21058341145 is a deficient number, since it is larger than the sum of its proper divisors (4391550695).

21058341145 is a wasteful number, since it uses less digits than its factorization.

21058341145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41496.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 21058341145 in words is "twenty-one billion, fifty-eight million, three hundred forty-one thousand, one hundred forty-five".