1071043621716 has 24 divisors (see below), whose sum is σ = 2541459443040. Its totient is φ = 350963446432.

The previous prime is 1071043621709. The next prime is 1071043621717. The reversal of 1071043621716 is 6171263401701.

It is a happy number.

It is a super-2 number, since 2×1071043621716² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071043621717) 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 7 ways as a sum of consecutive naturals, for example, 756386031 + ... + 756387446.

It is an arithmetic number, because the mean of its divisors is an integer number (105894143460).

Almost surely, 2^{1071043621716} is an apocalyptic number.

It is an amenable number.

1071043621716 is an abundant number, since it is smaller than the sum of its proper divisors (1470415821324).

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

1071043621716 is a wasteful number, since it uses less digits than its factorization.

1071043621716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512773543 (or 1512773541 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 1071043621716 in words is "one trillion, seventy-one billion, forty-three million, six hundred twenty-one thousand, seven hundred sixteen".