65240651814 has 32 divisors (see below), whose sum is σ = 140534145024. Its totient is φ = 20071787040.

The previous prime is 65240651809. The next prime is 65240651831. The reversal of 65240651814 is 41815604256.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732507 + ... + 816729.

It is an arithmetic number, because the mean of its divisors is an integer number (4391692032).

Almost surely, 2^65240651814 is an apocalyptic number.

65240651814 is an abundant number, since it is smaller than the sum of its proper divisors (75293493210).

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

65240651814 is a wasteful number, since it uses less digits than its factorization.

65240651814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94172.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 65240651814 in words is "sixty-five billion, two hundred forty million, six hundred fifty-one thousand, eight hundred fourteen".