1066011660 has 108 divisors (see below), whose sum is σ = 3761529408. Its totient is φ = 243657792.

The previous prime is 1066011643. The next prime is 1066011691. The reversal of 1066011660 is 661106601.

It is a super-2 number, since 2×1066011660² = 2272761718511911200, 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 35 ways as a sum of consecutive naturals, for example, 51612 + ... + 69251.

It is an arithmetic number, because the mean of its divisors is an integer number (34828976).

Almost surely, 2^1066011660 is an apocalyptic number.

1066011660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066011660 is an abundant number, since it is smaller than the sum of its proper divisors (2695517748).

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

1066011660 is a wasteful number, since it uses less digits than its factorization.

1066011660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120892 (or 120880 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1066011660 is about 32649.8339965152. The cubic root of 1066011660 is about 1021.5367262900.

The spelling of 1066011660 in words is "one billion, sixty-six million, eleven thousand, six hundred sixty".