16463509680 has 80 divisors (see below), whose sum is σ = 52122806784. Its totient is φ = 4296856320.

The previous prime is 16463509679. The next prime is 16463509691. The reversal of 16463509680 is 8690536461.

16463509680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718486 + ... + 741045.

Almost surely, 2^16463509680 is an apocalyptic number.

16463509680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16463509680 is an abundant number, since it is smaller than the sum of its proper divisors (35659297104).

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

16463509680 is a wasteful number, since it uses less digits than its factorization.

16463509680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459594 (or 1459588 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 16463509680 in words is "sixteen billion, four hundred sixty-three million, five hundred nine thousand, six hundred eighty".