383277281616 has 120 divisors (see below), whose sum is σ = 1136540471040. Its totient is φ = 120159187968.

The previous prime is 383277281603. The next prime is 383277281617. The reversal of 383277281616 is 616182772383.

It is a happy number.

383277281616 is a `hidden beast` number, since 3 + 83 + 277 + 281 + 6 + 16 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383277281617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3468271 + ... + 3577073.

It is an arithmetic number, because the mean of its divisors is an integer number (9471170592).

Almost surely, 2^383277281616 is an apocalyptic number.

383277281616 is a gapful number since it is divisible by the number (36) 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 383277281616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568270235520).

383277281616 is an abundant number, since it is smaller than the sum of its proper divisors (753263189424).

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

383277281616 is a wasteful number, since it uses less digits than its factorization.

383277281616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110273 (or 110264 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 383277281616 in words is "three hundred eighty-three billion, two hundred seventy-seven million, two hundred eighty-one thousand, six hundred sixteen".