1005806110645 has 16 divisors (see below), whose sum is σ = 1379415530880. Its totient is φ = 689683472064.

The previous prime is 1005806110633. The next prime is 1005806110681. The reversal of 1005806110645 is 5460116085001.

It is a cyclic number.

It is not a de Polignac number, because 1005806110645 - 2¹⁷ = 1005805979573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2060586 + ... + 2501524.

It is an arithmetic number, because the mean of its divisors is an integer number (86213470680).

Almost surely, 2^{1005806110645} is an apocalyptic number.

It is an amenable number.

1005806110645 is a deficient number, since it is larger than the sum of its proper divisors (373609420235).

1005806110645 is an equidigital number, since it uses as much as digits as its factorization.

1005806110645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506124.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 1005806110645 in words is "one trillion, five billion, eight hundred six million, one hundred ten thousand, six hundred forty-five".