70666737007 has 16 divisors (see below), whose sum is σ = 72963839520. Its totient is φ = 68391015552.

The previous prime is 70666736981. The next prime is 70666737017. The reversal of 70666737007 is 70073766607.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 70666737007 - 2¹¹ = 70666734959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70666737017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5362008 + ... + 5375170.

It is an arithmetic number, because the mean of its divisors is an integer number (4560239970).

Almost surely, 2^70666737007 is an apocalyptic number.

70666737007 is a deficient number, since it is larger than the sum of its proper divisors (2297102513).

70666737007 is a wasteful number, since it uses less digits than its factorization.

70666737007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13962.

The product of its (nonzero) digits is 1555848, while the sum is 49.

The spelling of 70666737007 in words is "seventy billion, six hundred sixty-six million, seven hundred thirty-seven thousand, seven".