6651285601 has 2 divisors, whose sum is σ = 6651285602. Its totient is φ = 6651285600.

The previous prime is 6651285551. The next prime is 6651285617. The reversal of 6651285601 is 1065821566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6564888576 + 86397025 = 81024^2 + 9295^2 .

It is a cyclic number.

It is not a de Polignac number, because 6651285601 - 2⁹ = 6651285089 is a prime.

It is not a weakly prime, because it can be changed into another prime (6651285671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325642800 + 3325642801.

It is an arithmetic number, because the mean of its divisors is an integer number (3325642801).

Almost surely, 2^6651285601 is an apocalyptic number.

It is an amenable number.

6651285601 is a deficient number, since it is larger than the sum of its proper divisors (1).

6651285601 is an equidigital number, since it uses as much as digits as its factorization.

6651285601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 6651285601 is about 81555.4142960478. The cubic root of 6651285601 is about 1880.6235294993.

The spelling of 6651285601 in words is "six billion, six hundred fifty-one million, two hundred eighty-five thousand, six hundred one".