1005105110650 has 48 divisors (see below), whose sum is σ = 1901064038400. Its totient is φ = 395303596160.

The previous prime is 1005105110609. The next prime is 1005105110657. The reversal of 1005105110650 is 560115015001.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1005105110657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165639 + ... + 1427461.

It is an arithmetic number, because the mean of its divisors is an integer number (39605500800).

Almost surely, 2^{1005105110650} is an apocalyptic number.

1005105110650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005105110650 is a deficient number, since it is larger than the sum of its proper divisors (895958927750).

1005105110650 is a wasteful number, since it uses less digits than its factorization.

1005105110650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262103 (or 1262098 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 1005105110650 in words is "one trillion, five billion, one hundred five million, one hundred ten thousand, six hundred fifty".