215488681463121 has 16 divisors (see below), whose sum is σ = 318576411346368. Its totient is φ = 128458230379200.

The previous prime is 215488681463119. The next prime is 215488681463171. The reversal of 215488681463121 is 121364186884512.

It is not a de Polignac number, because 215488681463121 - 2¹ = 215488681463119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215488681463171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53524260646 + ... + 53524264671.

It is an arithmetic number, because the mean of its divisors is an integer number (19911025709148).

Almost surely, 2^{215488681463121} is an apocalyptic number.

It is an amenable number.

215488681463121 is a deficient number, since it is larger than the sum of its proper divisors (103087729883247).

215488681463121 is a wasteful number, since it uses less digits than its factorization.

215488681463121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107048525392.

The product of its digits is 17694720, while the sum is 60.

The spelling of 215488681463121 in words is "two hundred fifteen trillion, four hundred eighty-eight billion, six hundred eighty-one million, four hundred sixty-three thousand, one hundred twenty-one".