64980070855 has 12 divisors (see below), whose sum is σ = 90706874760. Its totient is φ = 44557762704.

The previous prime is 64980070829. The next prime is 64980070867. The reversal of 64980070855 is 55807008946.

64980070855 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 64980070855 - 2⁵ = 64980070823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132612145 + ... + 132612634.

It is an arithmetic number, because the mean of its divisors is an integer number (7558906230).

Almost surely, 2^64980070855 is an apocalyptic number.

64980070855 is a deficient number, since it is larger than the sum of its proper divisors (25726803905).

64980070855 is a wasteful number, since it uses less digits than its factorization.

64980070855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265224798 (or 265224791 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 64980070855 in words is "sixty-four billion, nine hundred eighty million, seventy thousand, eight hundred fifty-five".