6661246071743 has 4 divisors (see below), whose sum is σ = 6695760300288. Its totient is φ = 6626731843200.

The previous prime is 6661246071691. The next prime is 6661246071751. The reversal of 6661246071743 is 3471706421666.

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 6661246071743 - 2⁶ = 6661246071679 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 (6661246071763) 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, 17257113983 + ... + 17257114368.

It is an arithmetic number, because the mean of its divisors is an integer number (1673940075072).

Almost surely, 2^{6661246071743} is an apocalyptic number.

6661246071743 is a deficient number, since it is larger than the sum of its proper divisors (34514228545).

6661246071743 is a wasteful number, since it uses less digits than its factorization.

6661246071743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34514228544.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 6661246071743 in words is "six trillion, six hundred sixty-one billion, two hundred forty-six million, seventy-one thousand, seven hundred forty-three".