1016840071 has 4 divisors (see below), whose sum is σ = 1095058552. Its totient is φ = 938621592.

The previous prime is 1016840053. The next prime is 1016840087. The reversal of 1016840071 is 1700486101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1016840071 - 2⁹ = 1016839559 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 (1016846071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39109221 + ... + 39109246.

It is an arithmetic number, because the mean of its divisors is an integer number (273764638).

Almost surely, 2^1016840071 is an apocalyptic number.

1016840071 is a deficient number, since it is larger than the sum of its proper divisors (78218481).

1016840071 is an equidigital number, since it uses as much as digits as its factorization.

1016840071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78218480.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1016840071 is about 31887.9298638215. The cubic root of 1016840071 is about 1005.5821387467.

The spelling of 1016840071 in words is "one billion, sixteen million, eight hundred forty thousand, seventy-one".