1166121670 has 16 divisors (see below), whose sum is σ = 2398879008. Its totient is φ = 399813120.

The previous prime is 1166121611. The next prime is 1166121701. The reversal of 1166121670 is 761216611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8329371 + ... + 8329510.

It is an arithmetic number, because the mean of its divisors is an integer number (149929938).

Almost surely, 2^1166121670 is an apocalyptic number.

1166121670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166121670 is an abundant number, since it is smaller than the sum of its proper divisors (1232757338).

1166121670 is a wasteful number, since it uses less digits than its factorization.

1166121670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16658895.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1166121670 is about 34148.5236869766. The cubic root of 1166121670 is about 1052.5626505098.

The spelling of 1166121670 in words is "one billion, one hundred sixty-six million, one hundred twenty-one thousand, six hundred seventy".