1166017275 has 84 divisors (see below), whose sum is σ = 2188299672. Its totient is φ = 616014720.

The previous prime is 1166017273. The next prime is 1166017339. The reversal of 1166017275 is 5727106611.

It is not a de Polignac number, because 1166017275 - 2¹ = 1166017273 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1166017273) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 2496592 + ... + 2497058.

Almost surely, 2^1166017275 is an apocalyptic number.

1166017275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166017275 is a deficient number, since it is larger than the sum of its proper divisors (1022282397).

1166017275 is an equidigital number, since it uses as much as digits as its factorization.

1166017275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1166017275 is about 34146.9951093797. The cubic root of 1166017275 is about 1052.5312399632.

The spelling of 1166017275 in words is "one billion, one hundred sixty-six million, seventeen thousand, two hundred seventy-five".