216425318118273 has 144 divisors (see below), whose sum is σ = 369094841676288. Its totient is φ = 126502286803200.

The previous prime is 216425318118223. The next prime is 216425318118287. The reversal of 216425318118273 is 372811813524612.

216425318118273 is a `hidden beast` number, since 2 + 1 + 6 + 4 + 2 + 531 + 81 + 1 + 8 + 27 + 3 = 666.

It is not a de Polignac number, because 216425318118273 - 2⁹ = 216425318117761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216425318118223) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 266662261 + ... + 267472637.

It is an arithmetic number, because the mean of its divisors is an integer number (2563158622752).

Almost surely, 2^{216425318118273} is an apocalyptic number.

It is an amenable number.

216425318118273 is a deficient number, since it is larger than the sum of its proper divisors (152669523558015).

216425318118273 is a wasteful number, since it uses less digits than its factorization.

216425318118273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810738 (or 810715 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 216425318118273 in words is "two hundred sixteen trillion, four hundred twenty-five billion, three hundred eighteen million, one hundred eighteen thousand, two hundred seventy-three".