21160325064515 has 128 divisors (see below), whose sum is σ = 36033258240000. Its totient is φ = 11530637991936.

The previous prime is 21160325064509. The next prime is 21160325064523. The reversal of 21160325064515 is 51546052306112.

It is not a de Polignac number, because 21160325064515 - 2³² = 21156030097219 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 127 ways as a sum of consecutive naturals, for example, 1779536 + ... + 6744434.

It is an arithmetic number, because the mean of its divisors is an integer number (281509830000).

Almost surely, 2^{21160325064515} is an apocalyptic number.

21160325064515 is a deficient number, since it is larger than the sum of its proper divisors (14872933175485).

21160325064515 is a wasteful number, since it uses less digits than its factorization.

21160325064515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964989.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 21160325064515 in words is "twenty-one trillion, one hundred sixty billion, three hundred twenty-five million, sixty-four thousand, five hundred fifteen".