215223041015 has 16 divisors (see below), whose sum is σ = 260035429248. Its totient is φ = 171000950016.

The previous prime is 215223040997. The next prime is 215223041023. The reversal of 215223041015 is 510140322512.

It is a cyclic number.

It is not a de Polignac number, because 215223041015 - 2²⁴ = 215206263799 is a prime.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1626434 + ... + 1753776.

It is an arithmetic number, because the mean of its divisors is an integer number (16252214328).

Almost surely, 2^215223041015 is an apocalyptic number.

215223041015 is a deficient number, since it is larger than the sum of its proper divisors (44812388233).

215223041015 is a wasteful number, since it uses less digits than its factorization.

215223041015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129658.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 215223041015 its reverse (510140322512), we get a palindrome (725363363527).

The spelling of 215223041015 in words is "two hundred fifteen billion, two hundred twenty-three million, forty-one thousand, fifteen".