6696803556 has 81 divisors (see below), whose sum is σ = 17725924489. Its totient is φ = 2131612032.

The previous prime is 6696803549. The next prime is 6696803563. The reversal of 6696803556 is 6553086966.

The square root of 6696803556 is 81834.

It is a perfect power (a square), and thus also a powerful number.

6696803556 is a `hidden beast` number, since 6 + 6 + 9 + 6 + 80 + 3 + 556 = 666.

It is an interprime number because it is at equal distance from previous prime (6696803549) and next prime (6696803563).

It can be written as a sum of positive squares in only one way, i.e., 4117788900 + 2579014656 = 64170^2 + 50784^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11292796 + ... + 11293388.

Almost surely, 2^6696803556 is an apocalyptic number.

6696803556 is the 81834-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6696803556

6696803556 is an abundant number, since it is smaller than the sum of its proper divisors (11029120933).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6696803556 is a wasteful number, since it uses less digits than its factorization.

6696803556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The cubic root of 6696803556 is about 1884.9037849325.

The spelling of 6696803556 in words is "six billion, six hundred ninety-six million, eight hundred three thousand, five hundred fifty-six".