6820553158 has 8 divisors (see below), whose sum is σ = 10769294520. Its totient is φ = 3230788320.

The previous prime is 6820553149. The next prime is 6820553197. The reversal of 6820553158 is 8513550286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6820553158² = 93039890762207545928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89744083 + ... + 89744158.

It is an arithmetic number, because the mean of its divisors is an integer number (1346161815).

Almost surely, 2^6820553158 is an apocalyptic number.

6820553158 is a deficient number, since it is larger than the sum of its proper divisors (3948741362).

6820553158 is a wasteful number, since it uses less digits than its factorization.

6820553158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179488262.

The product of its (nonzero) digits is 288000, while the sum is 43.

The square root of 6820553158 is about 82586.6403118567. The cubic root of 6820553158 is about 1896.4433146752.

The spelling of 6820553158 in words is "six billion, eight hundred twenty million, five hundred fifty-three thousand, one hundred fifty-eight".