6466854720 has 112 divisors (see below), whose sum is σ = 20647517760. Its totient is φ = 1714814976.

The previous prime is 6466854707. The next prime is 6466854733. The reversal of 6466854720 is 274586646.

It is an interprime number because it is at equal distance from previous prime (6466854707) and next prime (6466854733).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 6466854720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153024 + ... + 190656.

Almost surely, 2^6466854720 is an apocalyptic number.

6466854720 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 6466854720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10323758880).

6466854720 is an abundant number, since it is smaller than the sum of its proper divisors (14180663040).

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

6466854720 is a wasteful number, since it uses less digits than its factorization.

6466854720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37832 (or 37822 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The square root of 6466854720 is about 80416.7564628169. The cubic root of 6466854720 is about 1863.0779883849.

The spelling of 6466854720 in words is "six billion, four hundred sixty-six million, eight hundred fifty-four thousand, seven hundred twenty".