6563166325 has 24 divisors (see below), whose sum is σ = 8393335808. Its totient is φ = 5087940480.

The previous prime is 6563166263. The next prime is 6563166341. The reversal of 6563166325 is 5236613656.

It is not a de Polignac number, because 6563166325 - 2¹⁷ = 6563035253 is a prime.

It is a super-2 number, since 2×6563166325² = 86150304419228011250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112489 + ... + 160561.

Almost surely, 2^6563166325 is an apocalyptic number.

It is an amenable number.

6563166325 is a deficient number, since it is larger than the sum of its proper divisors (1830169483).

6563166325 is a wasteful number, since it uses less digits than its factorization.

6563166325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48253 (or 48248 counting only the distinct ones).

The product of its digits is 583200, while the sum is 43.

The square root of 6563166325 is about 81013.3712728954. The cubic root of 6563166325 is about 1872.2814600302.

The spelling of 6563166325 in words is "six billion, five hundred sixty-three million, one hundred sixty-six thousand, three hundred twenty-five".