16328478348 has 432 divisors, whose sum is σ = 54134685696. Its totient is φ = 4108527360.

The previous prime is 16328478323. The next prime is 16328478349. The reversal of 16328478348 is 84387482361.

16328478348 is a `hidden beast` number, since 16 + 3 + 284 + 7 + 8 + 348 = 666.

It is a super-2 number, since 2×16328478348² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16328478294 and 16328478303.

It is not an unprimeable number, because it can be changed into a prime (16328478349) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 73221765 + ... + 73221987.

Almost surely, 2^16328478348 is an apocalyptic number.

16328478348 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 16328478348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27067342848).

16328478348 is an abundant number, since it is smaller than the sum of its proper divisors (37806207348).

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

16328478348 is a wasteful number, since it uses less digits than its factorization.

16328478348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 382 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 16328478348 in words is "sixteen billion, three hundred twenty-eight million, four hundred seventy-eight thousand, three hundred forty-eight".