966227561 has 8 divisors (see below), whose sum is σ = 1074119424. Its totient is φ = 863130960.

The previous prime is 966227519. The next prime is 966227567. The reversal of 966227561 is 165722669.

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 966227561 - 2¹⁰ = 966226537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (966227567) 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, 1198391 + ... + 1199196.

It is an arithmetic number, because the mean of its divisors is an integer number (134264928).

Almost surely, 2^966227561 is an apocalyptic number.

It is an amenable number.

966227561 is a deficient number, since it is larger than the sum of its proper divisors (107891863).

966227561 is a wasteful number, since it uses less digits than its factorization.

966227561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397631.

The product of its digits is 272160, while the sum is 44.

The square root of 966227561 is about 31084.2011478500. The cubic root of 966227561 is about 988.6133568042.

The spelling of 966227561 in words is "nine hundred sixty-six million, two hundred twenty-seven thousand, five hundred sixty-one".