154202542060666 has 16 divisors (see below), whose sum is σ = 252378325693728. Its totient is φ = 70079038675600.

The previous prime is 154202542060597. The next prime is 154202542060667. The reversal of 154202542060666 is 666060245202451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (154202542060667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651173800 + ... + 651410563.

It is an arithmetic number, because the mean of its divisors is an integer number (15773645355858).

Almost surely, 2^{154202542060666} is an apocalyptic number.

154202542060666 is a deficient number, since it is larger than the sum of its proper divisors (98175783633062).

154202542060666 is a wasteful number, since it uses less digits than its factorization.

154202542060666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302589757.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 154202542060666 in words is "one hundred fifty-four trillion, two hundred two billion, five hundred forty-two million, sixty thousand, six hundred sixty-six".