71070066 has 24 divisors (see below), whose sum is σ = 154225344. Its totient is φ = 23653080.

The previous prime is 71070061. The next prime is 71070067. The reversal of 71070066 is 66007017.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71070061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10371 + ... + 15801.

It is an arithmetic number, because the mean of its divisors is an integer number (6426056).

Almost surely, 2^71070066 is an apocalyptic number.

71070066 is an abundant number, since it is smaller than the sum of its proper divisors (83155278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71070066 is a wasteful number, since it uses less digits than its factorization.

71070066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166 (or 6163 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 71070066 is about 8430.3064001257. The cubic root of 71070066 is about 414.2179416797.

The spelling of 71070066 in words is "seventy-one million, seventy thousand, sixty-six".