1005501060605 has 4 divisors (see below), whose sum is σ = 1206601272732. Its totient is φ = 804400848480.

The previous prime is 1005501060583. The next prime is 1005501060661. The reversal of 1005501060605 is 5060601055001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160598158009 + 844902902596 = 400747^2 + 919186^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1005501060605 is a prime.

It is a super-2 number, since 2×1005501060605² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100550106056 + ... + 100550106065.

It is an arithmetic number, because the mean of its divisors is an integer number (301650318183).

Almost surely, 2^{1005501060605} is an apocalyptic number.

It is an amenable number.

1005501060605 is a deficient number, since it is larger than the sum of its proper divisors (201100212127).

1005501060605 is an equidigital number, since it uses as much as digits as its factorization.

1005501060605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201100212126.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 1005501060605 in words is "one trillion, five billion, five hundred one million, sixty thousand, six hundred five".