6655377629 has 2 divisors, whose sum is σ = 6655377630. Its totient is φ = 6655377628.

The previous prime is 6655377593. The next prime is 6655377647. The reversal of 6655377629 is 9267735566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6552902500 + 102475129 = 80950^2 + 10123^2 .

It is a cyclic number.

It is not a de Polignac number, because 6655377629 - 2¹⁶ = 6655312093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6655377679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3327688814 + 3327688815.

It is an arithmetic number, because the mean of its divisors is an integer number (3327688815).

Almost surely, 2^6655377629 is an apocalyptic number.

It is an amenable number.

6655377629 is a deficient number, since it is larger than the sum of its proper divisors (1).

6655377629 is an equidigital number, since it uses as much as digits as its factorization.

6655377629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14288400, while the sum is 56.

The square root of 6655377629 is about 81580.4978472184. The cubic root of 6655377629 is about 1881.0091184404.

The spelling of 6655377629 in words is "six billion, six hundred fifty-five million, three hundred seventy-seven thousand, six hundred twenty-nine".