6612623808 has 224 divisors, whose sum is σ = 21223833600. Its totient is φ = 1774918656.

The previous prime is 6612623803. The next prime is 6612623833. The reversal of 6612623808 is 8083262166.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×6612623808² = 87453587252256841728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 6612623808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6612623803) 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 31 ways as a sum of consecutive naturals, for example, 3242053 + ... + 3244091.

Almost surely, 2^6612623808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6612623808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10611916800).

6612623808 is an abundant number, since it is smaller than the sum of its proper divisors (14611209792).

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

6612623808 is a wasteful number, since it uses less digits than its factorization.

6612623808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 6612623808 is about 81318.0410979015. The cubic root of 6612623808 is about 1876.9726257332.

The spelling of 6612623808 in words is "six billion, six hundred twelve million, six hundred twenty-three thousand, eight hundred eight".