6624209970 has 320 divisors, whose sum is σ = 22694411520. Its totient is φ = 1349664768.

The previous prime is 6624209947. The next prime is 6624210007. The reversal of 6624209970 is 799024266.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1829602 + ... + 1833218.

It is an arithmetic number, because the mean of its divisors is an integer number (70920036).

Almost surely, 2^6624209970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6624209970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11347205760).

6624209970 is an abundant number, since it is smaller than the sum of its proper divisors (16070201550).

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

6624209970 is a wasteful number, since it uses less digits than its factorization.

6624209970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 6624209970 is about 81389.2497200951. The cubic root of 6624209970 is about 1878.0682180815.

The spelling of 6624209970 in words is "six billion, six hundred twenty-four million, two hundred nine thousand, nine hundred seventy".