64485085660 has 24 divisors (see below), whose sum is σ = 136484974080. Its totient is φ = 25590930624.

The previous prime is 64485085607. The next prime is 64485085681. The reversal of 64485085660 is 6658058446.

64485085660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64485085598 and 64485085607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12691375 + ... + 12696454.

It is an arithmetic number, because the mean of its divisors is an integer number (5686873920).

Almost surely, 2^64485085660 is an apocalyptic number.

It is an amenable number.

64485085660 is an abundant number, since it is smaller than the sum of its proper divisors (71999888420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64485085660 is a wasteful number, since it uses less digits than its factorization.

64485085660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25387965 (or 25387963 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 52.

The spelling of 64485085660 in words is "sixty-four billion, four hundred eighty-five million, eighty-five thousand, six hundred sixty".