16464486720 has 448 divisors, whose sum is σ = 59095111680. Its totient is φ = 3849216000.

The previous prime is 16464486719. The next prime is 16464486721. The reversal of 16464486720 is 2768446461.

It is an interprime number because it is at equal distance from previous prime (16464486719) and next prime (16464486721).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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 16464486720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16464486721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45861901 + ... + 45862259.

Almost surely, 2^16464486720 is an apocalyptic number.

16464486720 is a gapful number since it is divisible by the number (10) 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 16464486720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29547555840).

16464486720 is an abundant number, since it is smaller than the sum of its proper divisors (42630624960).

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

16464486720 is a wasteful number, since it uses less digits than its factorization.

16464486720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 16464486720 in words is "sixteen billion, four hundred sixty-four million, four hundred eighty-six thousand, seven hundred twenty".