66468226981902 has 8 divisors (see below), whose sum is σ = 132936453963816. Its totient is φ = 22156075660632.

The previous prime is 66468226981861. The next prime is 66468226981921. The reversal of 66468226981902 is 20918962286466.

It is a sphenic number, since it is the product of 3 distinct primes.

66468226981902 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5539018915153 + ... + 5539018915164.

It is an arithmetic number, because the mean of its divisors is an integer number (16617056745477).

Almost surely, 2^{66468226981902} is an apocalyptic number.

66468226981902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66468226981902 is a wasteful number, since it uses less digits than its factorization.

66468226981902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11078037830322.

The product of its (nonzero) digits is 214990848, while the sum is 69.

The spelling of 66468226981902 in words is "sixty-six trillion, four hundred sixty-eight billion, two hundred twenty-six million, nine hundred eighty-one thousand, nine hundred two".