6654500291 has 2 divisors, whose sum is σ = 6654500292. Its totient is φ = 6654500290.

The previous prime is 6654500287. The next prime is 6654500339. The reversal of 6654500291 is 1920054566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6654500291 - 2² = 6654500287 is a prime.

It is not a weakly prime, because it can be changed into another prime (6654500221) 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 as a sum of consecutive naturals, namely, 3327250145 + 3327250146.

It is an arithmetic number, because the mean of its divisors is an integer number (3327250146).

Almost surely, 2^6654500291 is an apocalyptic number.

6654500291 is a deficient number, since it is larger than the sum of its proper divisors (1).

6654500291 is an equidigital number, since it uses as much as digits as its factorization.

6654500291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 6654500291 is about 81575.1205392919. The cubic root of 6654500291 is about 1880.9264608067.

The spelling of 6654500291 in words is "six billion, six hundred fifty-four million, five hundred thousand, two hundred ninety-one".