1166213715 has 8 divisors (see below), whose sum is σ = 1865941968. Its totient is φ = 621980640.

The previous prime is 1166213639. The next prime is 1166213729. The reversal of 1166213715 is 5173126611.

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

It is not a de Polignac number, because 1166213715 - 2¹² = 1166209619 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38873776 + ... + 38873805.

It is an arithmetic number, because the mean of its divisors is an integer number (233242746).

Almost surely, 2^1166213715 is an apocalyptic number.

1166213715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166213715 is a deficient number, since it is larger than the sum of its proper divisors (699728253).

1166213715 is an equidigital number, since it uses as much as digits as its factorization.

1166213715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77747589.

The product of its digits is 7560, while the sum is 33.

The square root of 1166213715 is about 34149.8713760389. The cubic root of 1166213715 is about 1052.5903436121.

The spelling of 1166213715 in words is "one billion, one hundred sixty-six million, two hundred thirteen thousand, seven hundred fifteen".