65555055660 has 96 divisors (see below), whose sum is σ = 184832347392. Its totient is φ = 17359955200.

The previous prime is 65555055641. The next prime is 65555055667. The reversal of 65555055660 is 6655055556.

It is not an unprimeable number, because it can be changed into a prime (65555055667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6649735 + ... + 6659585.

It is an arithmetic number, because the mean of its divisors is an integer number (1925336952).

Almost surely, 2^65555055660 is an apocalyptic number.

65555055660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65555055660 is an abundant number, since it is smaller than the sum of its proper divisors (119277291732).

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

65555055660 is a wasteful number, since it uses less digits than its factorization.

65555055660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10623 (or 10621 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 65555055660 in words is "sixty-five billion, five hundred fifty-five million, fifty-five thousand, six hundred sixty".