66011555106050 has 48 divisors (see below), whose sum is σ = 122876965236960. Its totient is φ = 26384096780160.

The previous prime is 66011555105963. The next prime is 66011555106073. The reversal of 66011555106050 is 5060155511066.

It is a junction number, because it is equal to n+sod(n) for n = 66011555105989 and 66011555106007.

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 in 23 ways as a sum of consecutive naturals, for example, 422458037 + ... + 422614263.

It is an arithmetic number, because the mean of its divisors is an integer number (2559936775770).

Almost surely, 2^{66011555106050} is an apocalyptic number.

66011555106050 is a deficient number, since it is larger than the sum of its proper divisors (56865410130910).

66011555106050 is a wasteful number, since it uses less digits than its factorization.

66011555106050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162755 (or 162750 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 66011555106050 in words is "sixty-six trillion, eleven billion, five hundred fifty-five million, one hundred six thousand, fifty".