7070666665 has 16 divisors (see below), whose sum is σ = 8749073088. Its totient is φ = 5482924096.

The previous prime is 7070666599. The next prime is 7070666689. The reversal of 7070666665 is 5666660707.

It is a cyclic number.

It is not a de Polignac number, because 7070666665 - 2²¹ = 7068569513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138739 + ... + 182728.

It is an arithmetic number, because the mean of its divisors is an integer number (546817068).

Almost surely, 2^7070666665 is an apocalyptic number.

It is an amenable number.

7070666665 is a deficient number, since it is larger than the sum of its proper divisors (1678406423).

7070666665 is a wasteful number, since it uses less digits than its factorization.

7070666665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321608.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The square root of 7070666665 is about 84087.2562580086. The cubic root of 7070666665 is about 1919.3468069761.

The spelling of 7070666665 in words is "seven billion, seventy million, six hundred sixty-six thousand, six hundred sixty-five".