1171216670 has 64 divisors (see below), whose sum is σ = 2320980480. Its totient is φ = 422889600.

The previous prime is 1171216661. The next prime is 1171216679. The reversal of 1171216670 is 766121711.

It is an interprime number because it is at equal distance from previous prime (1171216661) and next prime (1171216679).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171216679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2385125 + ... + 2385615.

It is an arithmetic number, because the mean of its divisors is an integer number (36265320).

Almost surely, 2^1171216670 is an apocalyptic number.

1171216670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1171216670 is a deficient number, since it is larger than the sum of its proper divisors (1149763810).

1171216670 is a wasteful number, since it uses less digits than its factorization.

1171216670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 1171216670 is about 34223.0429681523. The cubic root of 1171216670 is about 1054.0933699257.

It can be divided in two parts, 11712 and 16670, that added together give a palindrome (28382).

The spelling of 1171216670 in words is "one billion, one hundred seventy-one million, two hundred sixteen thousand, six hundred seventy".