381223855116 has 72 divisors (see below), whose sum is σ = 1038054486560. Its totient is φ = 117268176384.

The previous prime is 381223855081. The next prime is 381223855141. The reversal of 381223855116 is 611558322183.

381223855116 is a `hidden beast` number, since 3 + 8 + 122 + 3 + 8 + 5 + 511 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1667745 + ... + 1882503.

Almost surely, 2^381223855116 is an apocalyptic number.

381223855116 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

381223855116 is an abundant number, since it is smaller than the sum of its proper divisors (656830631444).

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

381223855116 is a wasteful number, since it uses less digits than its factorization.

381223855116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218575 (or 218570 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The spelling of 381223855116 in words is "three hundred eighty-one billion, two hundred twenty-three million, eight hundred fifty-five thousand, one hundred sixteen".