66054200255 has 8 divisors (see below), whose sum is σ = 81198334224. Its totient is φ = 51554497600.

The previous prime is 66054200249. The next prime is 66054200257. The reversal of 66054200255 is 55200245066.

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

It is not a de Polignac number, because 66054200255 - 2⁸ = 66054199999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66054200257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161107601 + ... + 161108010.

It is an arithmetic number, because the mean of its divisors is an integer number (10149791778).

Almost surely, 2^66054200255 is an apocalyptic number.

66054200255 is a deficient number, since it is larger than the sum of its proper divisors (15144133969).

66054200255 is a wasteful number, since it uses less digits than its factorization.

66054200255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322215657.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 66054200255 in words is "sixty-six billion, fifty-four million, two hundred thousand, two hundred fifty-five".