1166668724771 has 4 divisors (see below), whose sum is σ = 1272729517944. Its totient is φ = 1060607931600.

The previous prime is 1166668724737. The next prime is 1166668724779. The reversal of 1166668724771 is 1774278666611.

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

It is a cyclic number.

It is not a de Polignac number, because 1166668724771 - 2⁶ = 1166668724707 is a prime.

It is a super-3 number, since 3×1166668724771³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166668724779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53030396570 + ... + 53030396591.

It is an arithmetic number, because the mean of its divisors is an integer number (318182379486).

Almost surely, 2^{1166668724771} is an apocalyptic number.

1166668724771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1166668724771 is a deficient number, since it is larger than the sum of its proper divisors (106060793173).

1166668724771 is a wasteful number, since it uses less digits than its factorization.

1166668724771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106060793172.

The product of its digits is 28449792, while the sum is 62.

The spelling of 1166668724771 in words is "one trillion, one hundred sixty-six billion, six hundred sixty-eight million, seven hundred twenty-four thousand, seven hundred seventy-one".