21160326454015 has 16 divisors (see below), whose sum is σ = 29157411248640. Its totient is φ = 14441170655520.

The previous prime is 21160326453997. The next prime is 21160326454051. The reversal of 21160326454015 is 51045462306112.

It is not a de Polignac number, because 21160326454015 - 2²⁹ = 21159789583103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432648435 + ... + 1432663204.

It is an arithmetic number, because the mean of its divisors is an integer number (1822338203040).

Almost surely, 2^{21160326454015} is an apocalyptic number.

21160326454015 is a deficient number, since it is larger than the sum of its proper divisors (7997084794625).

21160326454015 is a wasteful number, since it uses less digits than its factorization.

21160326454015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865311862.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 21160326454015 in words is "twenty-one trillion, one hundred sixty billion, three hundred twenty-six million, four hundred fifty-four thousand, fifteen".