65231405684 has 24 divisors (see below), whose sum is σ = 115620435840. Its totient is φ = 32197142016.

The previous prime is 65231405677. The next prime is 65231405713. The reversal of 65231405684 is 48650413256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2189939 + ... + 2219525.

It is an arithmetic number, because the mean of its divisors is an integer number (4817518160).

Almost surely, 2^65231405684 is an apocalyptic number.

It is an amenable number.

65231405684 is a deficient number, since it is larger than the sum of its proper divisors (50389030156).

65231405684 is a wasteful number, since it uses less digits than its factorization.

65231405684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36647 (or 36645 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 65231405684 in words is "sixty-five billion, two hundred thirty-one million, four hundred five thousand, six hundred eighty-four".