70166207 has 2 divisors, whose sum is σ = 70166208. Its totient is φ = 70166206.

The previous prime is 70166197. The next prime is 70166209. The reversal of 70166207 is 70266107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70166207 - 2⁶ = 70166143 is a prime.

Together with 70166209, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70166207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70166209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35083103 + 35083104.

It is an arithmetic number, because the mean of its divisors is an integer number (35083104).

Almost surely, 2^70166207 is an apocalyptic number.

70166207 is a deficient number, since it is larger than the sum of its proper divisors (1).

70166207 is an equidigital number, since it uses as much as digits as its factorization.

70166207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70166207 is about 8376.5271443481. The cubic root of 70166207 is about 412.4544561900.

The spelling of 70166207 in words is "seventy million, one hundred sixty-six thousand, two hundred seven".