6614975557 has 2 divisors, whose sum is σ = 6614975558. Its totient is φ = 6614975556.

The previous prime is 6614975483. The next prime is 6614975573. The reversal of 6614975557 is 7555794166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6209597601 + 405377956 = 78801^2 + 20134^2 .

It is a cyclic number.

It is not a de Polignac number, because 6614975557 - 2¹⁹ = 6614451269 is a prime.

It is the 81333-rd Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 6614975498 and 6614975507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6614975597) by changing a digit.

It is a nontrivial repunit in base 81332.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307487778 + 3307487779.

It is an arithmetic number, because the mean of its divisors is an integer number (3307487779).

Almost surely, 2^6614975557 is an apocalyptic number.

It is an amenable number.

6614975557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6614975557 is an equidigital number, since it uses as much as digits as its factorization.

6614975557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938000, while the sum is 55.

The square root of 6614975557 is about 81332.5000046107. The cubic root of 6614975557 is about 1877.1951115641.

The spelling of 6614975557 in words is "six billion, six hundred fourteen million, nine hundred seventy-five thousand, five hundred fifty-seven".