65241434640 has 40 divisors (see below), whose sum is σ = 202248448128. Its totient is φ = 17397715840.

The previous prime is 65241434567. The next prime is 65241434641. The reversal of 65241434640 is 4643414256.

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 (65241434641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135919416 + ... + 135919895.

Almost surely, 2^65241434640 is an apocalyptic number.

65241434640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65241434640 is an abundant number, since it is smaller than the sum of its proper divisors (137007013488).

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

65241434640 is a wasteful number, since it uses less digits than its factorization.

65241434640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271839327 (or 271839321 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 65241434640 its reverse (4643414256), we get a palindrome (69884848896).

The spelling of 65241434640 in words is "sixty-five billion, two hundred forty-one million, four hundred thirty-four thousand, six hundred forty".