1000068001156 has 81 divisors (see below), whose sum is σ = 2071543513221. Its totient is φ = 421214320800.

The previous prime is 1000068001151. The next prime is 1000068001169. The reversal of 1000068001156 is 6511008600001.

The square root of 1000068001156 is 1000034.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 32520351556 + 967547649600 = 180334^2 + 983640^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1000068001151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 854028451 + ... + 854029621.

Almost surely, 2^{1000068001156} is an apocalyptic number.

1000068001156 is the 1000034-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000068001156

1000068001156 is an abundant number, since it is smaller than the sum of its proper divisors (1071475512065).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000068001156 is an frugal number, since it uses more digits than its factorization.

1000068001156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 1000068001156 in words is "one trillion, sixty-eight million, one thousand, one hundred fifty-six".