7966660043 has 8 divisors (see below), whose sum is σ = 8405885520. Its totient is φ = 7529427360.

The previous prime is 7966660019. The next prime is 7966660111. The reversal of 7966660043 is 3400666697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7966660043 - 2⁶ = 7966659979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7966660043.

It is not an unprimeable number, because it can be changed into a prime (7966660243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489980 + ... + 505977.

It is an arithmetic number, because the mean of its divisors is an integer number (1050735690).

Almost surely, 2^7966660043 is an apocalyptic number.

7966660043 is a deficient number, since it is larger than the sum of its proper divisors (439225477).

7966660043 is a wasteful number, since it uses less digits than its factorization.

7966660043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996397.

The product of its (nonzero) digits is 979776, while the sum is 47.

The square root of 7966660043 is about 89256.1484884935. The cubic root of 7966660043 is about 1997.2178017311.

The spelling of 7966660043 in words is "seven billion, nine hundred sixty-six million, six hundred sixty thousand, forty-three".