1166985926 has 8 divisors (see below), whose sum is σ = 1810840320. Its totient is φ = 563372488.

The previous prime is 1166985923. The next prime is 1166985971. The reversal of 1166985926 is 6295896611.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166985923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10060166 + ... + 10060281.

It is an arithmetic number, because the mean of its divisors is an integer number (226355040).

Almost surely, 2^1166985926 is an apocalyptic number.

1166985926 is a deficient number, since it is larger than the sum of its proper divisors (643854394).

1166985926 is a wasteful number, since it uses less digits than its factorization.

1166985926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20120478.

The product of its digits is 1399680, while the sum is 53.

The square root of 1166985926 is about 34161.1757116174. The cubic root of 1166985926 is about 1052.8226173636.

The spelling of 1166985926 in words is "one billion, one hundred sixty-six million, nine hundred eighty-five thousand, nine hundred twenty-six".