70066111 has 4 divisors (see below), whose sum is σ = 70084872. Its totient is φ = 70047352.

The previous prime is 70066097. The next prime is 70066177. The reversal of 70066111 is 11166007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11166007 = 73 ⋅152959.

It is a cyclic number.

It is not a de Polignac number, because 70066111 - 2¹¹ = 70064063 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 (70066511) 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 3 ways as a sum of consecutive naturals, for example, 1660 + ... + 11953.

It is an arithmetic number, because the mean of its divisors is an integer number (17521218).

Almost surely, 2^70066111 is an apocalyptic number.

70066111 is a deficient number, since it is larger than the sum of its proper divisors (18761).

70066111 is a wasteful number, since it uses less digits than its factorization.

70066111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18760.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 70066111 is about 8370.5502208636. The cubic root of 70066111 is about 412.2582331058.

The spelling of 70066111 in words is "seventy million, sixty-six thousand, one hundred eleven".