66241420255 has 8 divisors (see below), whose sum is σ = 80261449632. Its totient is φ = 52478639328.

The previous prime is 66241420213. The next prime is 66241420327. The reversal of 66241420255 is 55202414266.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 66241420255 - 2¹³ = 66241412063 is a prime.

It is a Duffinian number.

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, 64311544 + ... + 64312573.

It is an arithmetic number, because the mean of its divisors is an integer number (10032681204).

Almost surely, 2^66241420255 is an apocalyptic number.

66241420255 is a deficient number, since it is larger than the sum of its proper divisors (14020029377).

66241420255 is a wasteful number, since it uses less digits than its factorization.

66241420255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128624225.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 66241420255 in words is "sixty-six billion, two hundred forty-one million, four hundred twenty thousand, two hundred fifty-five".