6651551833 has 2 divisors, whose sum is σ = 6651551834. Its totient is φ = 6651551832.

The previous prime is 6651551789. The next prime is 6651551839. The reversal of 6651551833 is 3381551566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6584835609 + 66716224 = 81147^2 + 8168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6651551833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6651551833.

It is not a weakly prime, because it can be changed into another prime (6651551839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325775916 + 3325775917.

It is an arithmetic number, because the mean of its divisors is an integer number (3325775917).

Almost surely, 2^6651551833 is an apocalyptic number.

It is an amenable number.

6651551833 is a deficient number, since it is larger than the sum of its proper divisors (1).

6651551833 is an equidigital number, since it uses as much as digits as its factorization.

6651551833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 43.

The square root of 6651551833 is about 81557.0464950761. The cubic root of 6651551833 is about 1880.6486211640.

The spelling of 6651551833 in words is "six billion, six hundred fifty-one million, five hundred fifty-one thousand, eight hundred thirty-three".