1066512711660 has 96 divisors (see below), whose sum is σ = 3362799089664. Its totient is φ = 250208256000.

The previous prime is 1066512711617. The next prime is 1066512711661. The reversal of 1066512711660 is 661172156601.

It is a happy number.

It is a super-2 number, since 2×1066512711660² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1066512711661) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 26042901 + ... + 26083820.

It is an arithmetic number, because the mean of its divisors is an integer number (35029157184).

Almost surely, 2^{1066512711660} is an apocalyptic number.

1066512711660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066512711660 is an abundant number, since it is smaller than the sum of its proper divisors (2296286378004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066512711660 is a wasteful number, since it uses less digits than its factorization.

1066512711660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52126775 (or 52126773 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 1066512711660 in words is "one trillion, sixty-six billion, five hundred twelve million, seven hundred eleven thousand, six hundred sixty".