6673561650 has 480 divisors, whose sum is σ = 22906426752. Its totient is φ = 1405900800.

The previous prime is 6673561603. The next prime is 6673561799. The reversal of 6673561650 is 561653766.

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 = 6673561596 and 6673561605.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 29398837 + ... + 29399063.

Almost surely, 2^6673561650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6673561650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11453213376).

6673561650 is an abundant number, since it is smaller than the sum of its proper divisors (16232865102).

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

6673561650 is a wasteful number, since it uses less digits than its factorization.

6673561650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 6673561650 is about 81691.8701585415. The cubic root of 6673561650 is about 1882.7206769760.

The spelling of 6673561650 in words is "six billion, six hundred seventy-three million, five hundred sixty-one thousand, six hundred fifty".