65340080 has 40 divisors (see below), whose sum is σ = 163604112. Its totient is φ = 24125184.

The previous prime is 65340071. The next prime is 65340083. The reversal of 65340080 is 8004356.

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

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (65340083) 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, 30374 + ... + 32453.

Almost surely, 2^65340080 is an apocalyptic number.

It is an amenable number.

65340080 is an abundant number, since it is smaller than the sum of its proper divisors (98264032).

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

65340080 is a wasteful number, since it uses less digits than its factorization.

65340080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62853 (or 62847 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 65340080 is about 8083.3210996471. The cubic root of 65340080 is about 402.7725710553.

The spelling of 65340080 in words is "sixty-five million, three hundred forty thousand, eighty".