65065651560 has 576 divisors, whose sum is σ = 266653296000. Its totient is φ = 13637901312.

The previous prime is 65065651549. The next prime is 65065651577. The reversal of 65065651560 is 6515656056.

65065651560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 38295591 + ... + 38297289.

It is an arithmetic number, because the mean of its divisors is an integer number (462939750).

Almost surely, 2^65065651560 is an apocalyptic number.

65065651560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65065651560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133326648000).

65065651560 is an abundant number, since it is smaller than the sum of its proper divisors (201587644440).

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

65065651560 is a wasteful number, since it uses less digits than its factorization.

65065651560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 65065651560 in words is "sixty-five billion, sixty-five million, six hundred fifty-one thousand, five hundred sixty".