65020354560 has 896 divisors, whose sum is σ = 272529239040. Its totient is φ = 14396424192.

The previous prime is 65020354547. The next prime is 65020354561. The reversal of 65020354560 is 6545302056.

It is a happy number.

65020354560 is a `hidden beast` number, since 6 + 50 + 2 + 0 + 3 + 545 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (896).

It is a super-2 number, since 2×65020354560² (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 not an unprimeable number, because it can be changed into a prime (65020354561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 286433167 + ... + 286433393.

Almost surely, 2^65020354560 is an apocalyptic number.

65020354560 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 65020354560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136264619520).

65020354560 is an abundant number, since it is smaller than the sum of its proper divisors (207508884480).

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

65020354560 is a wasteful number, since it uses less digits than its factorization.

65020354560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 65020354560 in words is "sixty-five billion, twenty million, three hundred fifty-four thousand, five hundred sixty".