215466254205055 has 32 divisors (see below), whose sum is σ = 299069624988288. Its totient is φ = 145968111168000.

The previous prime is 215466254205029. The next prime is 215466254205119. The reversal of 215466254205055 is 550502452664512.

It is not a de Polignac number, because 215466254205055 - 2⁹ = 215466254204543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215466254204993 and 215466254205011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64479112 + ... + 67738381.

It is an arithmetic number, because the mean of its divisors is an integer number (9345925780884).

Almost surely, 2^{215466254205055} is an apocalyptic number.

215466254205055 is a deficient number, since it is larger than the sum of its proper divisors (83603370783233).

215466254205055 is a wasteful number, since it uses less digits than its factorization.

215466254205055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132218067.

The product of its (nonzero) digits is 14400000, while the sum is 52.

The spelling of 215466254205055 in words is "two hundred fifteen trillion, four hundred sixty-six billion, two hundred fifty-four million, two hundred five thousand, fifty-five".