7016215665 has 32 divisors (see below), whose sum is σ = 11729629440. Its totient is φ = 3574520576.

The previous prime is 7016215649. The next prime is 7016215667. The reversal of 7016215665 is 5665126107.

It is a cyclic number.

It is not a de Polignac number, because 7016215665 - 2⁴ = 7016215649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7016215667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253531 + ... + 279839.

It is an arithmetic number, because the mean of its divisors is an integer number (366550920).

Almost surely, 2^7016215665 is an apocalyptic number.

It is an amenable number.

7016215665 is a deficient number, since it is larger than the sum of its proper divisors (4713413775).

7016215665 is a wasteful number, since it uses less digits than its factorization.

7016215665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27113.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 7016215665 is about 83762.8537300395. The cubic root of 7016215665 is about 1914.4071603713.

The spelling of 7016215665 in words is "seven billion, sixteen million, two hundred fifteen thousand, six hundred sixty-five".