667220519322 has 192 divisors, whose sum is σ = 1828251909120. Its totient is φ = 178125796224.

The previous prime is 667220519321. The next prime is 667220519351. The reversal of 667220519322 is 223915022766.

667220519322 is a `hidden beast` number, since 66 + 72 + 2 + 0 + 519 + 3 + 2 + 2 = 666.

667220519322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (667220519321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4647873 + ... + 4789275.

It is an arithmetic number, because the mean of its divisors is an integer number (9522145360).

Almost surely, 2^667220519322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667220519322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914125954560).

667220519322 is an abundant number, since it is smaller than the sum of its proper divisors (1161031389798).

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

667220519322 is a wasteful number, since it uses less digits than its factorization.

667220519322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141519 (or 141507 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 667220519322 in words is "six hundred sixty-seven billion, two hundred twenty million, five hundred nineteen thousand, three hundred twenty-two".