10391664271 has 4 divisors (see below), whose sum is σ = 10396584352. Its totient is φ = 10386744192.

The previous prime is 10391664259. The next prime is 10391664301. The reversal of 10391664271 is 17246619301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17246619301 = 71 ⋅242910131.

It is a cyclic number.

It is not a de Polignac number, because 10391664271 - 2⁹ = 10391663759 is a prime.

It is a super-2 number, since 2×10391664271² (a number of 21 digits) 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 (10391664251) 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, 2456871 + ... + 2461096.

It is an arithmetic number, because the mean of its divisors is an integer number (2599146088).

Almost surely, 2^10391664271 is an apocalyptic number.

10391664271 is a deficient number, since it is larger than the sum of its proper divisors (4920081).

10391664271 is an equidigital number, since it uses as much as digits as its factorization.

10391664271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920080.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 10391664271 in words is "ten billion, three hundred ninety-one million, six hundred sixty-four thousand, two hundred seventy-one".