3866405053056 has 256 divisors, whose sum is σ = 12670385817600. Its totient is φ = 1017273692160.

The previous prime is 3866405053039. The next prime is 3866405053109. The reversal of 3866405053056 is 6503505046683.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14509501 + ... + 14773571.

It is an arithmetic number, because the mean of its divisors is an integer number (49493694600).

Almost surely, 2^{3866405053056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3866405053056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6335192908800).

3866405053056 is an abundant number, since it is smaller than the sum of its proper divisors (8803980764544).

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

3866405053056 is a wasteful number, since it uses less digits than its factorization.

3866405053056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264527 (or 264515 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 3866405053056 in words is "three trillion, eight hundred sixty-six billion, four hundred five million, fifty-three thousand, fifty-six".