1005006165644 has 12 divisors (see below), whose sum is σ = 1894050081504. Its totient is φ = 463848999504.

The previous prime is 1005006165643. The next prime is 1005006165703. The reversal of 1005006165644 is 4465616005001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1005006165598 and 1005006165607.

It is not an unprimeable number, because it can be changed into a prime (1005006165643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9663520772 + ... + 9663520875.

It is an arithmetic number, because the mean of its divisors is an integer number (157837506792).

Almost surely, 2^{1005006165644} is an apocalyptic number.

It is an amenable number.

1005006165644 is a deficient number, since it is larger than the sum of its proper divisors (889043915860).

1005006165644 is a wasteful number, since it uses less digits than its factorization.

1005006165644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19327041664 (or 19327041662 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 1005006165644 in words is "one trillion, five billion, six million, one hundred sixty-five thousand, six hundred forty-four".