1166660060651 has 4 divisors (see below), whose sum is σ = 1181427909600. Its totient is φ = 1151892211704.

The previous prime is 1166660060639. The next prime is 1166660060659. The reversal of 1166660060651 is 1560600666611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166660060651 is a prime.

It is a super-2 number, since 2×1166660060651² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166660060659) 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 3 ways as a sum of consecutive naturals, for example, 7383924356 + ... + 7383924513.

It is an arithmetic number, because the mean of its divisors is an integer number (295356977400).

Almost surely, 2^{1166660060651} is an apocalyptic number.

1166660060651 is a deficient number, since it is larger than the sum of its proper divisors (14767848949).

1166660060651 is an equidigital number, since it uses as much as digits as its factorization.

1166660060651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14767848948.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 1166660060651 in words is "one trillion, one hundred sixty-six billion, six hundred sixty million, sixty thousand, six hundred fifty-one".