66065794855 has 8 divisors (see below), whose sum is σ = 79289964000. Its totient is φ = 52845295776.

The previous prime is 66065794841. The next prime is 66065794871. The reversal of 66065794855 is 55849756066.

66065794855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66065794855 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66065794793 and 66065794802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877755 + ... + 950044.

It is an arithmetic number, because the mean of its divisors is an integer number (9911245500).

Almost surely, 2^66065794855 is an apocalyptic number.

66065794855 is a deficient number, since it is larger than the sum of its proper divisors (13224169145).

66065794855 is a wasteful number, since it uses less digits than its factorization.

66065794855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835033.

The product of its (nonzero) digits is 54432000, while the sum is 61.

The spelling of 66065794855 in words is "sixty-six billion, sixty-five million, seven hundred ninety-four thousand, eight hundred fifty-five".