2066245140647 has 4 divisors (see below), whose sum is σ = 2066646592296. Its totient is φ = 2065843689000.

The previous prime is 2066245140623. The next prime is 2066245140671. The reversal of 2066245140647 is 7460415426602.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2066245140623) and next prime (2066245140671).

It is a cyclic number.

It is not a de Polignac number, because 2066245140647 - 2²⁴ = 2066228363431 is a prime.

It is a super-3 number, since 3×2066245140647³ (a number of 38 digits) contains 333 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 (2066245140607) 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, 200718104 + ... + 200728397.

It is an arithmetic number, because the mean of its divisors is an integer number (516661648074).

Almost surely, 2^{2066245140647} is an apocalyptic number.

2066245140647 is a deficient number, since it is larger than the sum of its proper divisors (401451649).

2066245140647 is an equidigital number, since it uses as much as digits as its factorization.

2066245140647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401451648.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 2066245140647 in words is "two trillion, sixty-six billion, two hundred forty-five million, one hundred forty thousand, six hundred forty-seven".