1166644072 has 16 divisors (see below), whose sum is σ = 2386317600. Its totient is φ = 530292720.

The previous prime is 1166644043. The next prime is 1166644117. The reversal of 1166644072 is 2704466611.

It is a super-2 number, since 2×1166644072² = 2722116781465482368, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 6628572 + ... + 6628747.

It is an arithmetic number, because the mean of its divisors is an integer number (149144850).

Almost surely, 2^1166644072 is an apocalyptic number.

It is an amenable number.

1166644072 is an abundant number, since it is smaller than the sum of its proper divisors (1219673528).

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

1166644072 is a wasteful number, since it uses less digits than its factorization.

1166644072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13257336 (or 13257332 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1166644072 is about 34156.1717995445. The cubic root of 1166644072 is about 1052.7198035636.

The spelling of 1166644072 in words is "one billion, one hundred sixty-six million, six hundred forty-four thousand, seventy-two".