65067280 has 40 divisors (see below), whose sum is σ = 151990272. Its totient is φ = 25905024.

The previous prime is 65067221. The next prime is 65067283. The reversal of 65067280 is 8276056.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (65067283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16369 + ... + 19951.

Almost surely, 2^65067280 is an apocalyptic number.

It is an amenable number.

65067280 is an abundant number, since it is smaller than the sum of its proper divisors (86922992).

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

65067280 is a wasteful number, since it uses less digits than its factorization.

65067280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823 (or 3817 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 65067280 is about 8066.4291976066. The cubic root of 65067280 is about 402.2112533708.

The spelling of 65067280 in words is "sixty-five million, sixty-seven thousand, two hundred eighty".