64651185255 has 16 divisors (see below), whose sum is σ = 106778732544. Its totient is φ = 33368353440.

The previous prime is 64651185239. The next prime is 64651185281. The reversal of 64651185255 is 55258115646.

64651185255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64651185255 - 2⁴ = 64651185239 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, 69516939 + ... + 69517868.

It is an arithmetic number, because the mean of its divisors is an integer number (6673670784).

Almost surely, 2^64651185255 is an apocalyptic number.

64651185255 is a deficient number, since it is larger than the sum of its proper divisors (42127547289).

64651185255 is a wasteful number, since it uses less digits than its factorization.

64651185255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139034846.

The product of its digits is 1440000, while the sum is 48.

The spelling of 64651185255 in words is "sixty-four billion, six hundred fifty-one million, one hundred eighty-five thousand, two hundred fifty-five".