7916201660501 has 4 divisors (see below), whose sum is σ = 8024642779212. Its totient is φ = 7807760541792.

The previous prime is 7916201660413. The next prime is 7916201660513. The reversal of 7916201660501 is 1050661026197.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2474124514225 + 5442077146276 = 1572935^2 + 2332826^2 .

It is a cyclic number.

It is not a de Polignac number, because 7916201660501 - 2¹⁰ = 7916201659477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7916201260501) 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 3 ways as a sum of consecutive naturals, for example, 54220559246 + ... + 54220559391.

It is an arithmetic number, because the mean of its divisors is an integer number (2006160694803).

Almost surely, 2^{7916201660501} is an apocalyptic number.

It is an amenable number.

7916201660501 is a deficient number, since it is larger than the sum of its proper divisors (108441118711).

7916201660501 is a wasteful number, since it uses less digits than its factorization.

7916201660501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108441118710.

The product of its (nonzero) digits is 136080, while the sum is 44.

Adding to 7916201660501 its reverse (1050661026197), we get a palindrome (8966862686698).

The spelling of 7916201660501 in words is "seven trillion, nine hundred sixteen billion, two hundred one million, six hundred sixty thousand, five hundred one".