66016506561150 has 48 divisors (see below), whose sum is σ = 166164532360704. Its totient is φ = 17341649482080.

The previous prime is 66016506561079. The next prime is 66016506561163. The reversal of 66016506561150 is 5116560561066.

It is a self number, because there is not a number n which added to its sum of digits gives 66016506561150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3284393262 + ... + 3284413361.

It is an arithmetic number, because the mean of its divisors is an integer number (3461761090848).

Almost surely, 2^{66016506561150} is an apocalyptic number.

66016506561150 is an abundant number, since it is smaller than the sum of its proper divisors (100148025799554).

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

66016506561150 is a wasteful number, since it uses less digits than its factorization.

66016506561150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6568806705 (or 6568806700 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 66016506561150 in words is "sixty-six trillion, sixteen billion, five hundred six million, five hundred sixty-one thousand, one hundred fifty".