66122066156 has 12 divisors (see below), whose sum is σ = 119446313280. Its totient is φ = 31994548080.

The previous prime is 66122066099. The next prime is 66122066159. The reversal of 66122066156 is 65166022166.

It is not an unprimeable number, because it can be changed into a prime (66122066159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266621111 + ... + 266621358.

It is an arithmetic number, because the mean of its divisors is an integer number (9953859440).

Almost surely, 2^66122066156 is an apocalyptic number.

It is an amenable number.

66122066156 is a deficient number, since it is larger than the sum of its proper divisors (53324247124).

66122066156 is a wasteful number, since it uses less digits than its factorization.

66122066156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533242504 (or 533242502 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 66122066156 in words is "sixty-six billion, one hundred twenty-two million, sixty-six thousand, one hundred fifty-six".