1001532666 has 16 divisors (see below), whose sum is σ = 2051921088. Its totient is φ = 325701600.

The previous prime is 1001532647. The next prime is 1001532671. The reversal of 1001532666 is 6662351001.

It is a Curzon number.

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, 2035390 + ... + 2035881.

It is an arithmetic number, because the mean of its divisors is an integer number (128245068).

Almost surely, 2^1001532666 is an apocalyptic number.

1001532666 is an abundant number, since it is smaller than the sum of its proper divisors (1050388422).

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

1001532666 is a wasteful number, since it uses less digits than its factorization.

1001532666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071317.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1001532666 is about 31647.0009005593. Note that the first 3 decimals coincide. The cubic root of 1001532666 is about 1000.5106278815.

Adding to 1001532666 its reverse (6662351001), we get a palindrome (7663883667).

The spelling of 1001532666 in words is "one billion, one million, five hundred thirty-two thousand, six hundred sixty-six".