65689337982 has 32 divisors (see below), whose sum is σ = 138326342400. Its totient is φ = 20739051648.

The previous prime is 65689337971. The next prime is 65689337999. The reversal of 65689337982 is 28973398656.

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, 426694 + ... + 559862.

It is an arithmetic number, because the mean of its divisors is an integer number (4322698200).

Almost surely, 2^65689337982 is an apocalyptic number.

65689337982 is an abundant number, since it is smaller than the sum of its proper divisors (72637004418).

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

65689337982 is a wasteful number, since it uses less digits than its factorization.

65689337982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137520.

The product of its digits is 117573120, while the sum is 66.

The spelling of 65689337982 in words is "sixty-five billion, six hundred eighty-nine million, three hundred thirty-seven thousand, nine hundred eighty-two".