6607681650 has 96 divisors (see below), whose sum is σ = 18506553600. Its totient is φ = 1733140800.

The previous prime is 6607681649. The next prime is 6607681657. The reversal of 6607681650 is 561867066.

It is a super-2 number, since 2×6607681650² = 87322913575493445000, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 6607681596 and 6607681605.

It is not an unprimeable number, because it can be changed into a prime (6607681657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42231 + ... + 122469.

It is an arithmetic number, because the mean of its divisors is an integer number (192776600).

Almost surely, 2^6607681650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6607681650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9253276800).

6607681650 is an abundant number, since it is smaller than the sum of its proper divisors (11898871950).

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

6607681650 is a wasteful number, since it uses less digits than its factorization.

6607681650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80321 (or 80310 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 6607681650 is about 81287.6475855957. The cubic root of 6607681650 is about 1876.5049038179.

The spelling of 6607681650 in words is "six billion, six hundred seven million, six hundred eighty-one thousand, six hundred fifty".