65546040 has 64 divisors (see below), whose sum is σ = 224732160. Its totient is φ = 14981760.

The previous prime is 65546011. The next prime is 65546053. The reversal of 65546040 is 4064556.

65546040 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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 65545989 and 65546007.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38176 + ... + 39855.

It is an arithmetic number, because the mean of its divisors is an integer number (3511440).

Almost surely, 2^65546040 is an apocalyptic number.

65546040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65546040 is an abundant number, since it is smaller than the sum of its proper divisors (159186120).

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

65546040 is a wasteful number, since it uses less digits than its factorization.

65546040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78052 (or 78048 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 65546040 is about 8096.0508891681. The cubic root of 65546040 is about 403.1953234687.

The spelling of 65546040 in words is "sixty-five million, five hundred forty-six thousand, forty".