1166581670 has 8 divisors (see below), whose sum is σ = 2099847024. Its totient is φ = 466632664.

The previous prime is 1166581649. The next prime is 1166581693. The reversal of 1166581670 is 761856611.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58329074 + ... + 58329093.

It is an arithmetic number, because the mean of its divisors is an integer number (262480878).

Almost surely, 2^1166581670 is an apocalyptic number.

1166581670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166581670 is a deficient number, since it is larger than the sum of its proper divisors (933265354).

1166581670 is a wasteful number, since it uses less digits than its factorization.

1166581670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116658174.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1166581670 is about 34155.2583067381. The cubic root of 1166581670 is about 1052.7010337737.

The spelling of 1166581670 in words is "one billion, one hundred sixty-six million, five hundred eighty-one thousand, six hundred seventy".