667485008216 has 96 divisors (see below), whose sum is σ = 1373864091600. Its totient is φ = 302224469760.

The previous prime is 667485008189. The next prime is 667485008261. The reversal of 667485008216 is 612800584766.

It is a happy number.

667485008216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×667485008216² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206714090 + ... + 206717318.

Almost surely, 2^667485008216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667485008216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686932045800).

667485008216 is an abundant number, since it is smaller than the sum of its proper divisors (706379083384).

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

667485008216 is a wasteful number, since it uses less digits than its factorization.

667485008216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937 (or 3874 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 667485008216 in words is "six hundred sixty-seven billion, four hundred eighty-five million, eight thousand, two hundred sixteen".