66028912955 has 16 divisors (see below), whose sum is σ = 85659134880. Its totient is φ = 48690450432.

The previous prime is 66028912907. The next prime is 66028912973. The reversal of 66028912955 is 55921982066.

It is a cyclic number.

It is not a de Polignac number, because 66028912955 - 2⁶ = 66028912891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66028912897 and 66028912906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9388934 + ... + 9395963.

It is an arithmetic number, because the mean of its divisors is an integer number (5353695930).

Almost surely, 2^66028912955 is an apocalyptic number.

66028912955 is a deficient number, since it is larger than the sum of its proper divisors (19630221925).

66028912955 is a wasteful number, since it uses less digits than its factorization.

66028912955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18784958.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 66028912955 in words is "sixty-six billion, twenty-eight million, nine hundred twelve thousand, nine hundred fifty-five".