1066156116 has 48 divisors (see below), whose sum is σ = 2581400640. Its totient is φ = 342074880.

The previous prime is 1066156111. The next prime is 1066156127. The reversal of 1066156116 is 6116516601.

It is a super-2 number, since 2×1066156116² = 2273377727368410912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066156111) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 112731 + ... + 121821.

It is an arithmetic number, because the mean of its divisors is an integer number (53779180).

Almost surely, 2^1066156116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066156116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290700320).

1066156116 is an abundant number, since it is smaller than the sum of its proper divisors (1515244524).

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

1066156116 is a wasteful number, since it uses less digits than its factorization.

1066156116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464 (or 9462 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1066156116 is about 32652.0461227164. The cubic root of 1066156116 is about 1021.5828672625.

The spelling of 1066156116 in words is "one billion, sixty-six million, one hundred fifty-six thousand, one hundred sixteen".