66142664647282 has 16 divisors (see below), whose sum is σ = 99848496415680. Its totient is φ = 32859843324048.

The previous prime is 66142664647273. The next prime is 66142664647307. The reversal of 66142664647282 is 28274646624166.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9636913 + ... + 15005179.

It is an arithmetic number, because the mean of its divisors is an integer number (6240531025980).

Almost surely, 2^{66142664647282} is an apocalyptic number.

66142664647282 is a deficient number, since it is larger than the sum of its proper divisors (33705831768398).

66142664647282 is a wasteful number, since it uses less digits than its factorization.

66142664647282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407665.

The product of its digits is 222953472, while the sum is 64.

The spelling of 66142664647282 in words is "sixty-six trillion, one hundred forty-two billion, six hundred sixty-four million, six hundred forty-seven thousand, two hundred eighty-two".