6650001600 has 672 divisors, whose sum is σ = 25443728640. Its totient is φ = 1505280000.

The previous prime is 6650001599. The next prime is 6650001607. The reversal of 6650001600 is 61000566.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (6650001607) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65841550 + ... + 65841650.

Almost surely, 2^6650001600 is an apocalyptic number.

6650001600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6650001600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12721864320).

6650001600 is an abundant number, since it is smaller than the sum of its proper divisors (18793727040).

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

6650001600 is a wasteful number, since it uses less digits than its factorization.

6650001600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 6650001600 is about 81547.5419617293. The cubic root of 6650001600 is about 1880.5025063850.

The spelling of 6650001600 in words is "six billion, six hundred fifty million, one thousand, six hundred".