65342051680 has 48 divisors (see below), whose sum is σ = 154468959120. Its totient is φ = 26120166912.

The previous prime is 65342051617. The next prime is 65342051711. The reversal of 65342051680 is 8615024356.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 7 ways as a sum of consecutive naturals, for example, 123322 + ... + 381958.

It is an arithmetic number, because the mean of its divisors is an integer number (3218103315).

Almost surely, 2^65342051680 is an apocalyptic number.

It is an amenable number.

65342051680 is an abundant number, since it is smaller than the sum of its proper divisors (89126907440).

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

65342051680 is a wasteful number, since it uses less digits than its factorization.

65342051680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260231 (or 260223 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 65342051680 in words is "sixty-five billion, three hundred forty-two million, fifty-one thousand, six hundred eighty".