7220060657 has 2 divisors, whose sum is σ = 7220060658. Its totient is φ = 7220060656.

The previous prime is 7220060609. The next prime is 7220060717. The reversal of 7220060657 is 7560600227.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6816814096 + 403246561 = 82564^2 + 20081^2 .

It is a cyclic number.

It is not a de Polignac number, because 7220060657 - 2⁶ = 7220060593 is a prime.

It is not a weakly prime, because it can be changed into another prime (7220060257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610030328 + 3610030329.

It is an arithmetic number, because the mean of its divisors is an integer number (3610030329).

Almost surely, 2^7220060657 is an apocalyptic number.

It is an amenable number.

7220060657 is a deficient number, since it is larger than the sum of its proper divisors (1).

7220060657 is an equidigital number, since it uses as much as digits as its factorization.

7220060657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 7220060657 is about 84970.9400736511. The cubic root of 7220060657 is about 1932.7704720932.

The spelling of 7220060657 in words is "seven billion, two hundred twenty million, sixty thousand, six hundred fifty-seven".