1066530554 has 16 divisors (see below), whose sum is σ = 1639015560. Its totient is φ = 520303680.

The previous prime is 1066530529. The next prime is 1066530571. The reversal of 1066530554 is 4550356601.

It can be written as a sum of positive squares in 4 ways, for example, as 350700529 + 715830025 = 18727^2 + 26755^2 .

It is a super-2 number, since 2×1066530554² = 2274974845231093832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8609 + ... + 46980.

Almost surely, 2^1066530554 is an apocalyptic number.

1066530554 is a deficient number, since it is larger than the sum of its proper divisors (572485006).

1066530554 is a wasteful number, since it uses less digits than its factorization.

1066530554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55825.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 1066530554 is about 32657.7793794985. The cubic root of 1066530554 is about 1021.7024478342.

The spelling of 1066530554 in words is "one billion, sixty-six million, five hundred thirty thousand, five hundred fifty-four".