966780311 has 4 divisors (see below), whose sum is σ = 1104891792. Its totient is φ = 828668832.

The previous prime is 966780299. The next prime is 966780323. The reversal of 966780311 is 113087669.

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

It is an interprime number because it is at equal distance from previous prime (966780299) and next prime (966780323).

It is a cyclic number.

It is not a de Polignac number, because 966780311 - 2⁶ = 966780247 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 (966780341) 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, 69055730 + ... + 69055743.

It is an arithmetic number, because the mean of its divisors is an integer number (276222948).

Almost surely, 2^966780311 is an apocalyptic number.

966780311 is a deficient number, since it is larger than the sum of its proper divisors (138111481).

966780311 is a wasteful number, since it uses less digits than its factorization.

966780311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138111480.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 966780311 is about 31093.0910492990. The cubic root of 966780311 is about 988.8018396160.

The spelling of 966780311 in words is "nine hundred sixty-six million, seven hundred eighty thousand, three hundred eleven".