1005562011666 has 16 divisors (see below), whose sum is σ = 2057894349984. Its totient is φ = 327392282784.

The previous prime is 1005562011607. The next prime is 1005562011677. The reversal of 1005562011666 is 6661102655001.

It is a super-2 number, since 2×1005562011666² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1948763331 + ... + 1948763846.

It is an arithmetic number, because the mean of its divisors is an integer number (128618396874).

Almost surely, 2^{1005562011666} is an apocalyptic number.

1005562011666 is an abundant number, since it is smaller than the sum of its proper divisors (1052332338318).

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

1005562011666 is a wasteful number, since it uses less digits than its factorization.

1005562011666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897527225.

The product of its (nonzero) digits is 64800, while the sum is 39.

Adding to 1005562011666 its reverse (6661102655001), we get a palindrome (7666664666667).

The spelling of 1005562011666 in words is "one trillion, five billion, five hundred sixty-two million, eleven thousand, six hundred sixty-six".