7066645385 has 8 divisors (see below), whose sum is σ = 8484518016. Its totient is φ = 5650287280.

The previous prime is 7066645367. The next prime is 7066645387. The reversal of 7066645385 is 5835466607.

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

It is a de Polignac number, because none of the positive numbers 2^k-7066645385 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7066645387) 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, 368339 + ... + 387048.

It is an arithmetic number, because the mean of its divisors is an integer number (1060564752).

Almost surely, 2^7066645385 is an apocalyptic number.

It is an amenable number.

7066645385 is a deficient number, since it is larger than the sum of its proper divisors (1417872631).

7066645385 is a wasteful number, since it uses less digits than its factorization.

7066645385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757263.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The square root of 7066645385 is about 84063.3415050817. The cubic root of 7066645385 is about 1918.9828764377.

The spelling of 7066645385 in words is "seven billion, sixty-six million, six hundred forty-five thousand, three hundred eighty-five".