66335031055 has 16 divisors (see below), whose sum is σ = 83298352320. Its totient is φ = 50616890368.

The previous prime is 66335031043. The next prime is 66335031071. The reversal of 66335031055 is 55013053366.

It is a cyclic number.

It is not a de Polignac number, because 66335031055 - 2¹⁵ = 66334998287 is a prime.

It is a congruent number.

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, 776440 + ... + 857629.

It is an arithmetic number, because the mean of its divisors is an integer number (5206147020).

Almost surely, 2^66335031055 is an apocalyptic number.

66335031055 is a deficient number, since it is larger than the sum of its proper divisors (16963321265).

66335031055 is a wasteful number, since it uses less digits than its factorization.

66335031055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634450.

The product of its (nonzero) digits is 121500, while the sum is 37.

The spelling of 66335031055 in words is "sixty-six billion, three hundred thirty-five million, thirty-one thousand, fifty-five".