64530445855 has 16 divisors (see below), whose sum is σ = 77860816704. Its totient is φ = 51341713920.

The previous prime is 64530445831. The next prime is 64530445871. The reversal of 64530445855 is 55854403546.

64530445855 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 64530445855 - 2²³ = 64522057247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64530445799 and 64530445808.

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, 2737399 + ... + 2760871.

It is an arithmetic number, because the mean of its divisors is an integer number (4866301044).

Almost surely, 2^64530445855 is an apocalyptic number.

64530445855 is a deficient number, since it is larger than the sum of its proper divisors (13330370849).

64530445855 is a wasteful number, since it uses less digits than its factorization.

64530445855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26466.

The product of its (nonzero) digits is 5760000, while the sum is 49.

The spelling of 64530445855 in words is "sixty-four billion, five hundred thirty million, four hundred forty-five thousand, eight hundred fifty-five".