1066489157678 has 96 divisors (see below), whose sum is σ = 1987908562944. Its totient is φ = 420083693568.

The previous prime is 1066489157641. The next prime is 1066489157683. The reversal of 1066489157678 is 8767519846601.

It is a super-2 number, since 2×1066489157678² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88038950 + ... + 88051062.

It is an arithmetic number, because the mean of its divisors is an integer number (20707380864).

Almost surely, 2^{1066489157678} is an apocalyptic number.

1066489157678 is a deficient number, since it is larger than the sum of its proper divisors (921419405266).

1066489157678 is a wasteful number, since it uses less digits than its factorization.

1066489157678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12666 (or 12649 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 1066489157678 in words is "one trillion, sixty-six billion, four hundred eighty-nine million, one hundred fifty-seven thousand, six hundred seventy-eight".