21160524015065 has 8 divisors (see below), whose sum is σ = 25392653586240. Its totient is φ = 16928402699952.

The previous prime is 21160524015017. The next prime is 21160524015077. The reversal of 21160524015065 is 56051042506112.

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 21160524015065 - 2¹⁰ = 21160524014041 is a prime.

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, 8366996 + ... + 10598474.

It is an arithmetic number, because the mean of its divisors is an integer number (3174081698280).

Almost surely, 2^{21160524015065} is an apocalyptic number.

It is an amenable number.

21160524015065 is a deficient number, since it is larger than the sum of its proper divisors (4232129571175).

21160524015065 is a wasteful number, since it uses less digits than its factorization.

21160524015065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128031.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 21160524015065 in words is "twenty-one trillion, one hundred sixty billion, five hundred twenty-four million, fifteen thousand, sixty-five".