16332794478 has 672 divisors, whose sum is σ = 53729851392. Its totient is φ = 3590179200.

The previous prime is 16332794437. The next prime is 16332794479. The reversal of 16332794478 is 87449723361.

16332794478 is a `hidden beast` number, since 1 + 63 + 3 + 27 + 94 + 478 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16332794479) by changing a digit.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 526864323 + ... + 526864353.

It is an arithmetic number, because the mean of its divisors is an integer number (79955136).

Almost surely, 2^16332794478 is an apocalyptic number.

16332794478 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 16332794478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26864925696).

16332794478 is an abundant number, since it is smaller than the sum of its proper divisors (37397056914).

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

16332794478 is a wasteful number, since it uses less digits than its factorization.

16332794478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 86 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 16332794478 in words is "sixteen billion, three hundred thirty-two million, seven hundred ninety-four thousand, four hundred seventy-eight".