6820674555 has 16 divisors (see below), whose sum is σ = 10914925824. Its totient is φ = 3637077600.

The previous prime is 6820674551. The next prime is 6820674563. The reversal of 6820674555 is 5554760286.

It is a happy number.

It is not a de Polignac number, because 6820674555 - 2² = 6820674551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6820674551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61522 + ... + 132008.

It is an arithmetic number, because the mean of its divisors is an integer number (682182864).

Almost surely, 2^6820674555 is an apocalyptic number.

6820674555 is a deficient number, since it is larger than the sum of its proper divisors (4094251269).

6820674555 is a wasteful number, since it uses less digits than its factorization.

6820674555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76946.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The square root of 6820674555 is about 82587.3752761280. The cubic root of 6820674555 is about 1896.4545660189.

The spelling of 6820674555 in words is "six billion, eight hundred twenty million, six hundred seventy-four thousand, five hundred fifty-five".