1001660711 has 4 divisors (see below), whose sum is σ = 1005852000. Its totient is φ = 997469424.

The previous prime is 1001660659. The next prime is 1001660713. The reversal of 1001660711 is 1170661001.

1001660711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1170661001 = 277 ⋅4226213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001660711 is a prime.

It is a super-2 number, since 2×1001660711² = 2006648359922051042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001660713) 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, 2095286 + ... + 2095763.

It is an arithmetic number, because the mean of its divisors is an integer number (251463000).

Almost surely, 2^1001660711 is an apocalyptic number.

1001660711 is a deficient number, since it is larger than the sum of its proper divisors (4191289).

1001660711 is an equidigital number, since it uses as much as digits as its factorization.

1001660711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191288.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1001660711 is about 31649.0238554051. The cubic root of 1001660711 is about 1000.5532641756.

The spelling of 1001660711 in words is "one billion, one million, six hundred sixty thousand, seven hundred eleven".