65110065660 has 72 divisors (see below), whose sum is σ = 206087525280. Its totient is φ = 16607783808.

The previous prime is 65110065599. The next prime is 65110065677. The reversal of 65110065660 is 6656001156.

It is a super-2 number, since 2×65110065660² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7859395 + ... + 7867674.

It is an arithmetic number, because the mean of its divisors is an integer number (2862326740).

Almost surely, 2^65110065660 is an apocalyptic number.

65110065660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65110065660 is an abundant number, since it is smaller than the sum of its proper divisors (140977459620).

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

65110065660 is a wasteful number, since it uses less digits than its factorization.

65110065660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15727107 (or 15727102 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 65110065660 in words is "sixty-five billion, one hundred ten million, sixty-five thousand, six hundred sixty".