65854356480 has 1056 divisors, whose sum is σ = 267633623040. Its totient is φ = 15328051200.

The previous prime is 65854356479. The next prime is 65854356499. The reversal of 65854356480 is 8465345856.

65854356480 is a `hidden beast` number, since 6 + 5 + 8 + 543 + 56 + 48 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 518538177 + ... + 518538303.

Almost surely, 2^65854356480 is an apocalyptic number.

65854356480 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 65854356480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133816811520).

65854356480 is an abundant number, since it is smaller than the sum of its proper divisors (201779266560).

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

65854356480 is a wasteful number, since it uses less digits than its factorization.

65854356480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 65854356480 in words is "sixty-five billion, eight hundred fifty-four million, three hundred fifty-six thousand, four hundred eighty".