6216666342 has 16 divisors (see below), whose sum is σ = 12437186880. Its totient is φ = 2071579752.

The previous prime is 6216666329. The next prime is 6216666347. The reversal of 6216666342 is 2436666126.

It is a junction number, because it is equal to n+sod(n) for n = 6216666294 and 6216666303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6216666347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139408 + ... + 178515.

It is an arithmetic number, because the mean of its divisors is an integer number (777324180).

Almost surely, 2^6216666342 is an apocalyptic number.

6216666342 is an abundant number, since it is smaller than the sum of its proper divisors (6220520538).

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

6216666342 is a wasteful number, since it uses less digits than its factorization.

6216666342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321187.

The product of its digits is 373248, while the sum is 42.

The square root of 6216666342 is about 78845.8390912292. The cubic root of 6216666342 is about 1838.7351836549.

The spelling of 6216666342 in words is "six billion, two hundred sixteen million, six hundred sixty-six thousand, three hundred forty-two".