1166305672 has 32 divisors (see below), whose sum is σ = 2646241920. Its totient is φ = 470442240.

The previous prime is 1166305667. The next prime is 1166305703. The reversal of 1166305672 is 2765036611.

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, 611604 + ... + 613507.

It is an arithmetic number, because the mean of its divisors is an integer number (82695060).

Almost surely, 2^1166305672 is an apocalyptic number.

It is an amenable number.

1166305672 is an abundant number, since it is smaller than the sum of its proper divisors (1479936248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166305672 is a wasteful number, since it uses less digits than its factorization.

1166305672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225141 (or 1225137 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1166305672 is about 34151.2177235307. The cubic root of 1166305672 is about 1052.6180087833.

The spelling of 1166305672 in words is "one billion, one hundred sixty-six million, three hundred five thousand, six hundred seventy-two".