2147281746666 has 32 divisors (see below), whose sum is σ = 5121467025408. Its totient is φ = 586834762800.

The previous prime is 2147281746619. The next prime is 2147281746683. The reversal of 2147281746666 is 6666471827412.

It is a super-2 number, since 2×2147281746666² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1111428510 + ... + 1111430441.

It is an arithmetic number, because the mean of its divisors is an integer number (160045844544).

Almost surely, 2^{2147281746666} is an apocalyptic number.

2147281746666 is an abundant number, since it is smaller than the sum of its proper divisors (2974185278742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2147281746666 is a wasteful number, since it uses less digits than its factorization.

2147281746666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222858986.

The product of its digits is 32514048, while the sum is 60.

The spelling of 2147281746666 in words is "two trillion, one hundred forty-seven billion, two hundred eighty-one million, seven hundred forty-six thousand, six hundred sixty-six".