1073172216066 has 16 divisors (see below), whose sum is σ = 2259309928800. Its totient is φ = 338896489248.

The previous prime is 1073172216001. The next prime is 1073172216101. The reversal of 1073172216066 is 6606122713701.

It is a happy number.

1073172216066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706895571 + ... + 4706895798.

It is an arithmetic number, because the mean of its divisors is an integer number (141206870550).

Almost surely, 2^{1073172216066} is an apocalyptic number.

1073172216066 is an abundant number, since it is smaller than the sum of its proper divisors (1186137712734).

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

1073172216066 is a wasteful number, since it uses less digits than its factorization.

1073172216066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9413791393.

The product of its (nonzero) digits is 127008, while the sum is 42.

Adding to 1073172216066 its reverse (6606122713701), we get a palindrome (7679294929767).

The spelling of 1073172216066 in words is "one trillion, seventy-three billion, one hundred seventy-two million, two hundred sixteen thousand, sixty-six".