6255171668 has 6 divisors (see below), whose sum is σ = 10946550426. Its totient is φ = 3127585832.

The previous prime is 6255171667. The next prime is 6255171679. The reversal of 6255171668 is 8661715526.

It can be written as a sum of positive squares in only one way, i.e., 6245424784 + 9746884 = 79028^2 + 3122^2 .

It is a super-2 number, since 2×6255171668² = 78254345192299804448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6255171667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781896455 + ... + 781896462.

It is an arithmetic number, because the mean of its divisors is an integer number (1824425071).

Almost surely, 2^6255171668 is an apocalyptic number.

It is an amenable number.

6255171668 is a deficient number, since it is larger than the sum of its proper divisors (4691378758).

6255171668 is a wasteful number, since it uses less digits than its factorization.

6255171668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563792921 (or 1563792919 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 6255171668 is about 79089.6432410717. The cubic root of 6255171668 is about 1842.5236782562.

The spelling of 6255171668 in words is "six billion, two hundred fifty-five million, one hundred seventy-one thousand, six hundred sixty-eight".