1166023275 has 12 divisors (see below), whose sum is σ = 1927825272. Its totient is φ = 621879040.

The previous prime is 1166023247. The next prime is 1166023279. The reversal of 1166023275 is 5723206611.

It is not a de Polignac number, because 1166023275 - 2¹⁶ = 1165957739 is a prime.

It is a super-2 number, since 2×1166023275² = 2719220555683451250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166023279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7773414 + ... + 7773563.

It is an arithmetic number, because the mean of its divisors is an integer number (160652106).

Almost surely, 2^1166023275 is an apocalyptic number.

1166023275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166023275 is a deficient number, since it is larger than the sum of its proper divisors (761801997).

1166023275 is a wasteful number, since it uses less digits than its factorization.

1166023275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546990 (or 15546985 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1166023275 is about 34147.0829647277. The cubic root of 1166023275 is about 1052.5330453043.

Adding to 1166023275 its reverse (5723206611), we get a palindrome (6889229886).

The spelling of 1166023275 in words is "one billion, one hundred sixty-six million, twenty-three thousand, two hundred seventy-five".