1066590059 has 4 divisors (see below), whose sum is σ = 1069136040. Its totient is φ = 1064044080.

The previous prime is 1066590053. The next prime is 1066590067. The reversal of 1066590059 is 9500956601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9500956601 = 31 ⋅306482471.

It is a cyclic number.

It is not a de Polignac number, because 1066590059 - 2¹⁶ = 1066524523 is a prime.

It is a super-2 number, since 2×1066590059² = 2275228707915246962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1066589998 and 1066590025.

It is not an unprimeable number, because it can be changed into a prime (1066590053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272362 + ... + 1273199.

It is an arithmetic number, because the mean of its divisors is an integer number (267284010).

Almost surely, 2^1066590059 is an apocalyptic number.

1066590059 is a deficient number, since it is larger than the sum of its proper divisors (2545981).

1066590059 is an equidigital number, since it uses as much as digits as its factorization.

1066590059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545980.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 1066590059 is about 32658.6904054648. The cubic root of 1066590059 is about 1021.7214487818.

The spelling of 1066590059 in words is "one billion, sixty-six million, five hundred ninety thousand, fifty-nine".