6671506551 has 16 divisors (see below), whose sum is σ = 9129335040. Its totient is φ = 4332184640.

The previous prime is 6671506549. The next prime is 6671506591. The reversal of 6671506551 is 1556051766.

It is a cyclic number.

It is not a de Polignac number, because 6671506551 - 2¹ = 6671506549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6671506591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171006 + ... + 206363.

It is an arithmetic number, because the mean of its divisors is an integer number (570583440).

Almost surely, 2^6671506551 is an apocalyptic number.

6671506551 is a deficient number, since it is larger than the sum of its proper divisors (2457828489).

6671506551 is a wasteful number, since it uses less digits than its factorization.

6671506551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377526.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 6671506551 is about 81679.2908331114. The cubic root of 6671506551 is about 1882.5273981434.

The spelling of 6671506551 in words is "six billion, six hundred seventy-one million, five hundred six thousand, five hundred fifty-one".