6681633750 has 120 divisors (see below), whose sum is σ = 19735238952. Its totient is φ = 1619760000.

The previous prime is 6681633677. The next prime is 6681633781. The reversal of 6681633750 is 573361866.

6681633750 is a `hidden beast` number, since 6 + 6 + 8 + 1 + 633 + 7 + 5 + 0 = 666.

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 = 6681633696 and 6681633705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 96754 + ... + 150746.

Almost surely, 2^6681633750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6681633750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9867619476).

6681633750 is an abundant number, since it is smaller than the sum of its proper divisors (13053605202).

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

6681633750 is a wasteful number, since it uses less digits than its factorization.

6681633750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54032 (or 54014 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 6681633750 is about 81741.2610007945. The cubic root of 6681633750 is about 1883.4794615169.

The spelling of 6681633750 in words is "six billion, six hundred eighty-one million, six hundred thirty-three thousand, seven hundred fifty".