6662856825 has 48 divisors (see below), whose sum is σ = 12884145600. Its totient is φ = 3366489600.

The previous prime is 6662856773. The next prime is 6662856839. The reversal of 6662856825 is 5286582666.

It is not a de Polignac number, because 6662856825 - 2²³ = 6654468217 is a prime.

It is a super-2 number, since 2×6662856825² = 88787322140898161250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246936 + ... + 272585.

It is an arithmetic number, because the mean of its divisors is an integer number (268419700).

Almost surely, 2^6662856825 is an apocalyptic number.

It is an amenable number.

6662856825 is a deficient number, since it is larger than the sum of its proper divisors (6221288775).

6662856825 is a wasteful number, since it uses less digits than its factorization.

6662856825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519559 (or 519548 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The square root of 6662856825 is about 81626.3243384143. The cubic root of 6662856825 is about 1881.7134696179.

The spelling of 6662856825 in words is "six billion, six hundred sixty-two million, eight hundred fifty-six thousand, eight hundred twenty-five".