66016535255 has 64 divisors (see below), whose sum is σ = 89019648000. Its totient is φ = 46597125120.

The previous prime is 66016535239. The next prime is 66016535257. The reversal of 66016535255 is 55253561066.

It is not a de Polignac number, because 66016535255 - 2⁴ = 66016535239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66016535257) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69271859 + ... + 69272811.

It is an arithmetic number, because the mean of its divisors is an integer number (1390932000).

Almost surely, 2^66016535255 is an apocalyptic number.

66016535255 is a deficient number, since it is larger than the sum of its proper divisors (23003112745).

66016535255 is a wasteful number, since it uses less digits than its factorization.

66016535255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 66016535255 in words is "sixty-six billion, sixteen million, five hundred thirty-five thousand, two hundred fifty-five".