7288016561 has 8 divisors (see below), whose sum is σ = 8767538880. Its totient is φ = 5918088528.

The previous prime is 7288016531. The next prime is 7288016611. The reversal of 7288016561 is 1656108827.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7288016561 - 2⁶ = 7288016497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7288016521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27398426 + ... + 27398691.

It is an arithmetic number, because the mean of its divisors is an integer number (1095942360).

Almost surely, 2^7288016561 is an apocalyptic number.

It is an amenable number.

7288016561 is a deficient number, since it is larger than the sum of its proper divisors (1479522319).

7288016561 is a wasteful number, since it uses less digits than its factorization.

7288016561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54797143.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 7288016561 is about 85369.8808772743. The cubic root of 7288016561 is about 1938.8153536464.

The spelling of 7288016561 in words is "seven billion, two hundred eighty-eight million, sixteen thousand, five hundred sixty-one".