1066505546043 has 24 divisors (see below), whose sum is σ = 1837968743760. Its totient is φ = 609431739840.

The previous prime is 1066505546011. The next prime is 1066505546081. The reversal of 1066505546043 is 3406455056601.

1066505546043 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 50 + 554 + 6 + 0 + 43 = 666.

It is not a de Polignac number, because 1066505546043 - 2⁵ = 1066505546011 is a prime.

It is a super-2 number, since 2×1066505546043² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066505546043.

It is not an unprimeable number, because it can be changed into a prime (1066505544043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403061998 + ... + 403064643.

It is an arithmetic number, because the mean of its divisors is an integer number (76582030990).

Almost surely, 2^{1066505546043} is an apocalyptic number.

1066505546043 is a deficient number, since it is larger than the sum of its proper divisors (771463197717).

1066505546043 is an equidigital number, since it uses as much as digits as its factorization.

1066505546043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806126664 (or 806126651 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 1066505546043 in words is "one trillion, sixty-six billion, five hundred five million, five hundred forty-six thousand, forty-three".