3663181822 has 4 divisors (see below), whose sum is σ = 5494772736. Its totient is φ = 1831590910.

The previous prime is 3663181813. The next prime is 3663181831. The reversal of 3663181822 is 2281813663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2281813663 = 487 ⋅4685449.

It is an interprime number because it is at equal distance from previous prime (3663181813) and next prime (3663181831).

It is a super-2 number, since 2×3663181822² = 26837802122062479368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915795454 + ... + 915795457.

It is an arithmetic number, because the mean of its divisors is an integer number (1373693184).

Almost surely, 2^3663181822 is an apocalyptic number.

3663181822 is a deficient number, since it is larger than the sum of its proper divisors (1831590914).

3663181822 is a wasteful number, since it uses less digits than its factorization.

3663181822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831590913.

The product of its digits is 82944, while the sum is 40.

The square root of 3663181822 is about 60524.2250838456. The cubic root of 3663181822 is about 1541.5329961546.

The spelling of 3663181822 in words is "three billion, six hundred sixty-three million, one hundred eighty-one thousand, eight hundred twenty-two".