6626440016 has 40 divisors (see below), whose sum is σ = 14703582720. Its totient is φ = 2833951104.

The previous prime is 6626440003. The next prime is 6626440021. The reversal of 6626440016 is 6100446266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8111 + ... + 115406.

It is an arithmetic number, because the mean of its divisors is an integer number (367589568).

Almost surely, 2^6626440016 is an apocalyptic number.

It is an amenable number.

6626440016 is an abundant number, since it is smaller than the sum of its proper divisors (8077142704).

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

6626440016 is a wasteful number, since it uses less digits than its factorization.

6626440016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124011 (or 124005 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 6626440016 is about 81402.9484478296. The cubic root of 6626440016 is about 1878.2789455313.

The spelling of 6626440016 in words is "six billion, six hundred twenty-six million, four hundred forty thousand, sixteen".