966509855 has 8 divisors (see below), whose sum is σ = 1181695392. Its totient is φ = 758618848.

The previous prime is 966509837. The next prime is 966509953. The reversal of 966509855 is 558905669.

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

It is a cyclic number.

It is not a de Polignac number, because 966509855 - 2¹⁴ = 966493471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 966509797 and 966509806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1823339 + ... + 1823868.

It is an arithmetic number, because the mean of its divisors is an integer number (147711924).

Almost surely, 2^966509855 is an apocalyptic number.

966509855 is a deficient number, since it is larger than the sum of its proper divisors (215185537).

966509855 is a wasteful number, since it uses less digits than its factorization.

966509855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647265.

The product of its (nonzero) digits is 2916000, while the sum is 53.

The square root of 966509855 is about 31088.7416117153. The cubic root of 966509855 is about 988.7096255150.

The spelling of 966509855 in words is "nine hundred sixty-six million, five hundred nine thousand, eight hundred fifty-five".