1266170163 has 8 divisors (see below), whose sum is σ = 1688998608. Its totient is φ = 843727584.

The previous prime is 1266170161. The next prime is 1266170201. The reversal of 1266170163 is 3610716621.

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

It is not a de Polignac number, because 1266170163 - 2¹ = 1266170161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1266170161) 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, 88720 + ... + 101997.

It is an arithmetic number, because the mean of its divisors is an integer number (211124826).

Almost surely, 2^1266170163 is an apocalyptic number.

1266170163 is a deficient number, since it is larger than the sum of its proper divisors (422828445).

1266170163 is a wasteful number, since it uses less digits than its factorization.

1266170163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192933.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1266170163 is about 35583.2848820904. The cubic root of 1266170163 is about 1081.8424662711.

Adding to 1266170163 its reverse (3610716621), we get a palindrome (4876886784).

The spelling of 1266170163 in words is "one billion, two hundred sixty-six million, one hundred seventy thousand, one hundred sixty-three".