1166507877 has 8 divisors (see below), whose sum is σ = 1566533920. Its totient is φ = 772076880.

The previous prime is 1166507791. The next prime is 1166507893. The reversal of 1166507877 is 7787056611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1166507877 - 2¹⁰ = 1166506853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166577877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398274 + ... + 1399107.

It is an arithmetic number, because the mean of its divisors is an integer number (195816740).

Almost surely, 2^1166507877 is an apocalyptic number.

It is an amenable number.

1166507877 is a deficient number, since it is larger than the sum of its proper divisors (400026043).

1166507877 is a wasteful number, since it uses less digits than its factorization.

1166507877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797523.

The product of its (nonzero) digits is 493920, while the sum is 48.

The square root of 1166507877 is about 34154.1780313917. The cubic root of 1166507877 is about 1052.6788368407.

The spelling of 1166507877 in words is "one billion, one hundred sixty-six million, five hundred seven thousand, eight hundred seventy-seven".