65816074168 has 64 divisors (see below), whose sum is σ = 136064728800. Its totient is φ = 29653585920.

The previous prime is 65816074147. The next prime is 65816074183. The reversal of 65816074168 is 86147061856.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 11664628 + ... + 11670268.

Almost surely, 2^65816074168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65816074168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68032364400).

65816074168 is an abundant number, since it is smaller than the sum of its proper divisors (70248654632).

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

65816074168 is a wasteful number, since it uses less digits than its factorization.

65816074168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312 (or 8308 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 65816074168 in words is "sixty-five billion, eight hundred sixteen million, seventy-four thousand, one hundred sixty-eight".