3663366784 has 128 divisors (see below), whose sum is σ = 9271946880. Its totient is φ = 1400156160.

The previous prime is 3663366779. The next prime is 3663366787. The reversal of 3663366784 is 4876633663.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×3663366784² = 26840512388229005312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3663366787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518862 + ... + 525874.

It is an arithmetic number, because the mean of its divisors is an integer number (72437085).

Almost surely, 2^3663366784 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 3663366784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4635973440).

3663366784 is an abundant number, since it is smaller than the sum of its proper divisors (5608580096).

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

3663366784 is a wasteful number, since it uses less digits than its factorization.

3663366784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098 (or 7086 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 52.

The square root of 3663366784 is about 60525.7530642949. The cubic root of 3663366784 is about 1541.5589408334.

The spelling of 3663366784 in words is "three billion, six hundred sixty-three million, three hundred sixty-six thousand, seven hundred eighty-four".