7667607816 has 96 divisors (see below), whose sum is σ = 22754628000. Its totient is φ = 2313227520.

The previous prime is 7667607781. The next prime is 7667607817. The reversal of 7667607816 is 6187067667.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7667607817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158460 + ... + 201108.

It is an arithmetic number, because the mean of its divisors is an integer number (237027375).

Almost surely, 2^7667607816 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 7667607816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11377314000).

7667607816 is an abundant number, since it is smaller than the sum of its proper divisors (15087020184).

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

7667607816 is a wasteful number, since it uses less digits than its factorization.

7667607816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42899 (or 42892 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The square root of 7667607816 is about 87564.8777535834. The cubic root of 7667607816 is about 1971.9079161881.

The spelling of 7667607816 in words is "seven billion, six hundred sixty-seven million, six hundred seven thousand, eight hundred sixteen".