1009966001 has 4 divisors (see below), whose sum is σ = 1101781104. Its totient is φ = 918150900.

The previous prime is 1009965989. The next prime is 1009966003. The reversal of 1009966001 is 1006699001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1009966001 - 2¹⁸ = 1009703857 is a prime.

1009966001 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1009966003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45907535 + ... + 45907556.

It is an arithmetic number, because the mean of its divisors is an integer number (275445276).

Almost surely, 2^1009966001 is an apocalyptic number.

1009966001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1009966001 is a deficient number, since it is larger than the sum of its proper divisors (91815103).

1009966001 is an equidigital number, since it uses as much as digits as its factorization.

1009966001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91815102.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1009966001 is about 31779.9622561135. The cubic root of 1009966001 is about 1003.3110253450.

The spelling of 1009966001 in words is "one billion, nine million, nine hundred sixty-six thousand, one".