6623355456 has 63 divisors (see below), whose sum is σ = 18990252723. Its totient is φ = 2207134080.

The previous prime is 6623355451. The next prime is 6623355457. The reversal of 6623355456 is 6545533266.

The square root of 6623355456 is 81384.

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

6623355456 is a `hidden beast` number, since 6 + 62 + 33 + 554 + 5 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (6623355451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1951521 + ... + 1954911.

Almost surely, 2^6623355456 is an apocalyptic number.

6623355456 is the 81384-th square number.

It is an amenable number.

6623355456 is an abundant number, since it is smaller than the sum of its proper divisors (12366897267).

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

6623355456 is an frugal number, since it uses more digits than its factorization.

6623355456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6800 (or 3396 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 45.

The cubic root of 6623355456 is about 1877.9874585341.

The spelling of 6623355456 in words is "six billion, six hundred twenty-three million, three hundred fifty-five thousand, four hundred fifty-six".