6491016000 has 896 divisors, whose sum is σ = 28072811520. Its totient is φ = 1455667200.

The previous prime is 6491015989. The next prime is 6491016013. The reversal of 6491016000 is 6101946.

6491016000 is a `hidden beast` number, since 6 + 49 + 10 + 1 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 122471974 + ... + 122472026.

Almost surely, 2^6491016000 is an apocalyptic number.

6491016000 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 6491016000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14036405760).

6491016000 is an abundant number, since it is smaller than the sum of its proper divisors (21581795520).

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

6491016000 is an frugal number, since it uses more digits than its factorization.

6491016000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 6491016000 is about 80566.8418147317. The cubic root of 6491016000 is about 1865.3953645290.

Adding to 6491016000 its reverse (6101946), we get a palindrome (6497117946).

The spelling of 6491016000 in words is "six billion, four hundred ninety-one million, sixteen thousand".