1166413377 has 4 divisors (see below), whose sum is σ = 1555217840. Its totient is φ = 777608916.

The previous prime is 1166413373. The next prime is 1166413411. The reversal of 1166413377 is 7733146611.

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 not a de Polignac number, because 1166413377 - 2² = 1166413373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166413373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194402227 + ... + 194402232.

It is an arithmetic number, because the mean of its divisors is an integer number (388804460).

Almost surely, 2^1166413377 is an apocalyptic number.

It is an amenable number.

1166413377 is a deficient number, since it is larger than the sum of its proper divisors (388804463).

1166413377 is an equidigital number, since it uses as much as digits as its factorization.

1166413377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388804462.

The product of its digits is 63504, while the sum is 39.

The square root of 1166413377 is about 34152.7945708693. The cubic root of 1166413377 is about 1052.6504098755.

Adding to 1166413377 its reverse (7733146611), we get a palindrome (8899559988).

The spelling of 1166413377 in words is "one billion, one hundred sixty-six million, four hundred thirteen thousand, three hundred seventy-seven".