1005166224509 has 8 divisors (see below), whose sum is σ = 1015549491768. Its totient is φ = 994783380480.

The previous prime is 1005166224479. The next prime is 1005166224577. The reversal of 1005166224509 is 9054226615001.

It can be written as a sum of positive squares in 4 ways, for example, as 223317679225 + 781848545284 = 472565^2 + 884222^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1005166224509 - 2¹² = 1005166220413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005166221509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7409639 + ... + 7544075.

It is an arithmetic number, because the mean of its divisors is an integer number (126943686471).

Almost surely, 2^{1005166224509} is an apocalyptic number.

It is an amenable number.

1005166224509 is a deficient number, since it is larger than the sum of its proper divisors (10383267259).

1005166224509 is an equidigital number, since it uses as much as digits as its factorization.

1005166224509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211615.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 1005166224509 in words is "one trillion, five billion, one hundred sixty-six million, two hundred twenty-four thousand, five hundred nine".