1066118506 has 4 divisors (see below), whose sum is σ = 1599177762. Its totient is φ = 533059252.

The previous prime is 1066118477. The next prime is 1066118507. The reversal of 1066118506 is 6058116601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 583657281 + 482461225 = 24159^2 + 21965^2 .

It is a super-2 number, since 2×1066118506² = 2273217337671344072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066118507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266529625 + ... + 266529628.

Almost surely, 2^1066118506 is an apocalyptic number.

1066118506 is a deficient number, since it is larger than the sum of its proper divisors (533059256).

1066118506 is an equidigital number, since it uses as much as digits as its factorization.

1066118506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533059255.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1066118506 is about 32651.4701966083. The cubic root of 1066118506 is about 1021.5708545804.

The spelling of 1066118506 in words is "one billion, sixty-six million, one hundred eighteen thousand, five hundred six".