966131777 has 16 divisors (see below), whose sum is σ = 1102937472. Its totient is φ = 838375680.

The previous prime is 966131693. The next prime is 966131791. The reversal of 966131777 is 777131669.

It is a cyclic number.

It is not a de Polignac number, because 966131777 - 2¹⁴ = 966115393 is a prime.

It is a super-2 number, since 2×966131777² = 1866821221058355458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (966131377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239108 + ... + 243114.

It is an arithmetic number, because the mean of its divisors is an integer number (68933592).

Almost surely, 2^966131777 is an apocalyptic number.

It is an amenable number.

966131777 is a deficient number, since it is larger than the sum of its proper divisors (136805695).

966131777 is a wasteful number, since it uses less digits than its factorization.

966131777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128.

The product of its digits is 333396, while the sum is 47.

The square root of 966131777 is about 31082.6603912857. The cubic root of 966131777 is about 988.5806880090.

The spelling of 966131777 in words is "nine hundred sixty-six million, one hundred thirty-one thousand, seven hundred seventy-seven".