1066605616 has 20 divisors (see below), whose sum is σ = 2137809600. Its totient is φ = 514912832.

The previous prime is 1066605607. The next prime is 1066605667. The reversal of 1066605616 is 6165066601.

1066605616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1066605616² = 2275295080165478912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148896 + ... + 1149823.

It is an arithmetic number, because the mean of its divisors is an integer number (106890480).

Almost surely, 2^1066605616 is an apocalyptic number.

1066605616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1066605616 is an abundant number, since it is smaller than the sum of its proper divisors (1071203984).

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

1066605616 is a wasteful number, since it uses less digits than its factorization.

1066605616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298756 (or 2298750 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1066605616 is about 32658.9285800989. The cubic root of 1066605616 is about 1021.7264162771.

The spelling of 1066605616 in words is "one billion, sixty-six million, six hundred five thousand, six hundred sixteen".