1005000805061 has 8 divisors (see below), whose sum is σ = 1096372523424. Its totient is φ = 913630421520.

The previous prime is 1005000805051. The next prime is 1005000805063. The reversal of 1005000805061 is 1605080005001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005000805061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005000805061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005000805063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877831 + ... + 2352923.

It is an arithmetic number, because the mean of its divisors is an integer number (137046565428).

Almost surely, 2^{1005000805061} is an apocalyptic number.

1005000805061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1005000805061 is a deficient number, since it is larger than the sum of its proper divisors (91371718363).

1005000805061 is a wasteful number, since it uses less digits than its factorization.

1005000805061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667411.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 1005000805061 in words is "one trillion, five billion, eight hundred five thousand, sixty-one".