16055854578 has 96 divisors (see below), whose sum is σ = 37331461440. Its totient is φ = 4969451520.

The previous prime is 16055854567. The next prime is 16055854597. The reversal of 16055854578 is 87545855061.

16055854578 is a `hidden beast` number, since 1 + 6 + 0 + 5 + 585 + 4 + 57 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12436113 + ... + 12437403.

It is an arithmetic number, because the mean of its divisors is an integer number (388869390).

Almost surely, 2^16055854578 is an apocalyptic number.

16055854578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16055854578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18665730720).

16055854578 is an abundant number, since it is smaller than the sum of its proper divisors (21275606862).

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

16055854578 is a wasteful number, since it uses less digits than its factorization.

16055854578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 54.

The spelling of 16055854578 in words is "sixteen billion, fifty-five million, eight hundred fifty-four thousand, five hundred seventy-eight".