215365262026223 has 16 divisors (see below), whose sum is σ = 219629837097216. Its totient is φ = 211145055185280.

The previous prime is 215365262026219. The next prime is 215365262026259. The reversal of 215365262026223 is 322620262563512.

It is a cyclic number.

It is not a de Polignac number, because 215365262026223 - 2² = 215365262026219 is a prime.

It is a super-3 number, since 3×215365262026223³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215365262025223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10824128 + ... + 23407098.

It is an arithmetic number, because the mean of its divisors is an integer number (13726864818576).

Almost surely, 2^{215365262026223} is an apocalyptic number.

215365262026223 is a deficient number, since it is larger than the sum of its proper divisors (4264575070993).

215365262026223 is a wasteful number, since it uses less digits than its factorization.

215365262026223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12584734.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 215365262026223 in words is "two hundred fifteen trillion, three hundred sixty-five billion, two hundred sixty-two million, twenty-six thousand, two hundred twenty-three".