1166666677 has 4 divisors (see below), whose sum is σ = 1272727296. Its totient is φ = 1060606060.

The previous prime is 1166666621. The next prime is 1166666681. The reversal of 1166666677 is 7766666611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166666677 is a prime.

It is a super-2 number, since 2×1166666677² = 2722222270444444658, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166666077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53030293 + ... + 53030314.

It is an arithmetic number, because the mean of its divisors is an integer number (318181824).

Almost surely, 2^1166666677 is an apocalyptic number.

It is an amenable number.

1166666677 is a deficient number, since it is larger than the sum of its proper divisors (106060619).

1166666677 is a wasteful number, since it uses less digits than its factorization.

1166666677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106060618.

The product of its digits is 2286144, while the sum is 52.

The square root of 1166666677 is about 34156.5027044632. The cubic root of 1166666677 is about 1052.7266027174.

The spelling of 1166666677 in words is "one billion, one hundred sixty-six million, six hundred sixty-six thousand, six hundred seventy-seven".