6663056377 has 2 divisors, whose sum is σ = 6663056378. Its totient is φ = 6663056376.

The previous prime is 6663056353. The next prime is 6663056431. The reversal of 6663056377 is 7736503666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3737977321 + 2925079056 = 61139^2 + 54084^2 .

It is a cyclic number.

It is not a de Polignac number, because 6663056377 - 2¹⁹ = 6662532089 is a prime.

It is a super-2 number, since 2×6663056377² = 88792640566160732258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6663056377.

It is not a weakly prime, because it can be changed into another prime (6663056077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331528188 + 3331528189.

It is an arithmetic number, because the mean of its divisors is an integer number (3331528189).

Almost surely, 2^6663056377 is an apocalyptic number.

It is an amenable number.

6663056377 is a deficient number, since it is larger than the sum of its proper divisors (1).

6663056377 is an equidigital number, since it uses as much as digits as its factorization.

6663056377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 49.

The square root of 6663056377 is about 81627.5466800271. The cubic root of 6663056377 is about 1881.7322551503.

The spelling of 6663056377 in words is "six billion, six hundred sixty-three million, fifty-six thousand, three hundred seventy-seven".