1005716545681 has 8 divisors (see below), whose sum is σ = 1007617644000. Its totient is φ = 1003816584960.

The previous prime is 1005716545679. The next prime is 1005716545709. The reversal of 1005716545681 is 1865456175001.

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 1005716545681 - 2¹ = 1005716545679 is a prime.

It is a super-2 number, since 2×1005716545681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005716545381) 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, 1495921 + ... + 2061361.

It is an arithmetic number, because the mean of its divisors is an integer number (125952205500).

Almost surely, 2^{1005716545681} is an apocalyptic number.

It is an amenable number.

1005716545681 is a deficient number, since it is larger than the sum of its proper divisors (1901098319).

1005716545681 is an equidigital number, since it uses as much as digits as its factorization.

1005716545681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568799.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 1005716545681 in words is "one trillion, five billion, seven hundred sixteen million, five hundred forty-five thousand, six hundred eighty-one".