1066651012046 has 4 divisors (see below), whose sum is σ = 1599976518072. Its totient is φ = 533325506022.

The previous prime is 1066651012039. The next prime is 1066651012081. The reversal of 1066651012046 is 6402101566601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1066651012046² (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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266662753010 + ... + 266662753013.

It is an arithmetic number, because the mean of its divisors is an integer number (399994129518).

Almost surely, 2^{1066651012046} is an apocalyptic number.

1066651012046 is a deficient number, since it is larger than the sum of its proper divisors (533325506026).

1066651012046 is an equidigital number, since it uses as much as digits as its factorization.

1066651012046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533325506025.

The product of its (nonzero) digits is 51840, while the sum is 38.

Adding to 1066651012046 its reverse (6402101566601), we get a palindrome (7468752578647).

The spelling of 1066651012046 in words is "one trillion, sixty-six billion, six hundred fifty-one million, twelve thousand, forty-six".