381066530880 has 224 divisors, whose sum is σ = 1383577908480. Its totient is φ = 87047331840.

The previous prime is 381066530861. The next prime is 381066530893. The reversal of 381066530880 is 88035660183.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11467890 + ... + 11501070.

Almost surely, 2^381066530880 is an apocalyptic number.

381066530880 is a gapful number since it is divisible by the number (30) 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 381066530880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691788954240).

381066530880 is an abundant number, since it is smaller than the sum of its proper divisors (1002511377600).

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

381066530880 is a wasteful number, since it uses less digits than its factorization.

381066530880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34917 (or 34907 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 381066530880 in words is "three hundred eighty-one billion, sixty-six million, five hundred thirty thousand, eight hundred eighty".