66208224802 has 4 divisors (see below), whose sum is σ = 99312337206. Its totient is φ = 33104112400.

The previous prime is 66208224793. The next prime is 66208224811. The reversal of 66208224802 is 20842280266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20842280266 = 2 ⋅10421140133.

It is an interprime number because it is at equal distance from previous prime (66208224793) and next prime (66208224811).

It can be written as a sum of positive squares in only one way, i.e., 58303414521 + 7904810281 = 241461^2 + 88909^2 .

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 as a sum of consecutive naturals, namely, 16552056199 + ... + 16552056202.

Almost surely, 2^66208224802 is an apocalyptic number.

66208224802 is a deficient number, since it is larger than the sum of its proper divisors (33104112404).

66208224802 is a wasteful number, since it uses less digits than its factorization.

66208224802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33104112403.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 66208224802 in words is "sixty-six billion, two hundred eight million, two hundred twenty-four thousand, eight hundred two".