16494477120 has 1120 divisors, whose sum is σ = 70262349696. Its totient is φ = 3627417600.

The previous prime is 16494477119. The next prime is 16494477133. The reversal of 16494477120 is 2177449461.

16494477120 is a `hidden beast` number, since 16 + 49 + 4 + 477 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 198728599 + ... + 198728681.

Almost surely, 2^16494477120 is an apocalyptic number.

16494477120 is a gapful number since it is divisible by the number (10) 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 16494477120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35131174848).

16494477120 is an abundant number, since it is smaller than the sum of its proper divisors (53767872576).

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

16494477120 is a wasteful number, since it uses less digits than its factorization.

16494477120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

It can be divided in two parts, 164944 and 77120, that added together give a square (242064 = 492²).

The spelling of 16494477120 in words is "sixteen billion, four hundred ninety-four million, four hundred seventy-seven thousand, one hundred twenty".