181278482016 has 24 divisors (see below), whose sum is σ = 475856015544. Its totient is φ = 60426160640.

The previous prime is 181278482009. The next prime is 181278482017. The reversal of 181278482016 is 610284872181.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181278482017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944158665 + ... + 944158856.

It is an arithmetic number, because the mean of its divisors is an integer number (19827333981).

Almost surely, 2^181278482016 is an apocalyptic number.

181278482016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

181278482016 is an abundant number, since it is smaller than the sum of its proper divisors (294577533528).

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

181278482016 is a wasteful number, since it uses less digits than its factorization.

181278482016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888317534 (or 1888317526 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The spelling of 181278482016 in words is "one hundred eighty-one billion, two hundred seventy-eight million, four hundred eighty-two thousand, sixteen".