1066989212648 has 16 divisors (see below), whose sum is σ = 2000632058880. Its totient is φ = 533487330288.

The previous prime is 1066989212621. The next prime is 1066989212683. The reversal of 1066989212648 is 8462129896601.

It is a super-2 number, since 2×1066989212648² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258890 + ... + 1483577.

It is an arithmetic number, because the mean of its divisors is an integer number (125039503680).

Almost surely, 2^{1066989212648} is an apocalyptic number.

It is an amenable number.

1066989212648 is a deficient number, since it is larger than the sum of its proper divisors (933642846232).

1066989212648 is a wasteful number, since it uses less digits than its factorization.

1066989212648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819016 (or 1819012 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 62.

The spelling of 1066989212648 in words is "one trillion, sixty-six billion, nine hundred eighty-nine million, two hundred twelve thousand, six hundred forty-eight".