6557667451 has 2 divisors, whose sum is σ = 6557667452. Its totient is φ = 6557667450.

The previous prime is 6557667407. The next prime is 6557667461. The reversal of 6557667451 is 1547667556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6557667451 - 2¹¹ = 6557665403 is a prime.

It is not a weakly prime, because it can be changed into another prime (6557667461) 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, 3278833725 + 3278833726.

It is an arithmetic number, because the mean of its divisors is an integer number (3278833726).

Almost surely, 2^6557667451 is an apocalyptic number.

6557667451 is a deficient number, since it is larger than the sum of its proper divisors (1).

6557667451 is an equidigital number, since it uses as much as digits as its factorization.

6557667451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292000, while the sum is 52.

The square root of 6557667451 is about 80979.4260970032. The cubic root of 6557667451 is about 1871.7584240455.

The spelling of 6557667451 in words is "six billion, five hundred fifty-seven million, six hundred sixty-seven thousand, four hundred fifty-one".