216375417108 has 18 divisors (see below), whose sum is σ = 546948971114. Its totient is φ = 72125139024.

The previous prime is 216375417107. The next prime is 216375417157. The reversal of 216375417108 is 801714573612.

216375417108 is a `hidden beast` number, since 2 + 1 + 6 + 37 + 541 + 71 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 116480229264 + 99895187844 = 341292^2 + 316062^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×216375417108² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216375417107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3005214091 + ... + 3005214162.

Almost surely, 2^216375417108 is an apocalyptic number.

It is an amenable number.

216375417108 is an abundant number, since it is smaller than the sum of its proper divisors (330573554006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216375417108 is a wasteful number, since it uses less digits than its factorization.

216375417108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010428263 (or 6010428258 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 216375417108 in words is "two hundred sixteen billion, three hundred seventy-five million, four hundred seventeen thousand, one hundred eight".