7666664343 has 32 divisors (see below), whose sum is σ = 11404603392. Its totient is φ = 4549305600.

The previous prime is 7666664339. The next prime is 7666664347. The reversal of 7666664343 is 3434666667.

It is an interprime number because it is at equal distance from previous prime (7666664339) and next prime (7666664347).

It is not a de Polignac number, because 7666664343 - 2² = 7666664339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666664347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328446 + ... + 351012.

It is an arithmetic number, because the mean of its divisors is an integer number (356393856).

Almost surely, 2^7666664343 is an apocalyptic number.

7666664343 is a deficient number, since it is larger than the sum of its proper divisors (3737939049).

7666664343 is a wasteful number, since it uses less digits than its factorization.

7666664343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22895.

The product of its digits is 7838208, while the sum is 51.

The square root of 7666664343 is about 87559.4903080186. The cubic root of 7666664343 is about 1971.8270340218.

The spelling of 7666664343 in words is "seven billion, six hundred sixty-six million, six hundred sixty-four thousand, three hundred forty-three".