16463648268 has 108 divisors (see below), whose sum is σ = 43493519160. Its totient is φ = 5250199680.

The previous prime is 16463648221. The next prime is 16463648293. The reversal of 16463648268 is 86284636461.

16463648268 is a `hidden beast` number, since 16 + 4 + 6 + 364 + 8 + 268 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3076371 + ... + 3081717.

It is an arithmetic number, because the mean of its divisors is an integer number (402717770).

Almost surely, 2^16463648268 is an apocalyptic number.

16463648268 is a gapful number since it is divisible by the number (18) 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 16463648268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21746759580).

16463648268 is an abundant number, since it is smaller than the sum of its proper divisors (27029870892).

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

16463648268 is a wasteful number, since it uses less digits than its factorization.

16463648268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508 (or 5472 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The spelling of 16463648268 in words is "sixteen billion, four hundred sixty-three million, six hundred forty-eight thousand, two hundred sixty-eight".