65340489396 has 192 divisors, whose sum is σ = 196461619200. Its totient is φ = 16437302784.

The previous prime is 65340489329. The next prime is 65340489443. The reversal of 65340489396 is 69398404356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2616015 + ... + 2640873.

It is an arithmetic number, because the mean of its divisors is an integer number (1023237600).

Almost surely, 2^65340489396 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 65340489396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98230809600).

65340489396 is an abundant number, since it is smaller than the sum of its proper divisors (131121129804).

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

65340489396 is a wasteful number, since it uses less digits than its factorization.

65340489396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24998 (or 24996 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 57.

The spelling of 65340489396 in words is "sixty-five billion, three hundred forty million, four hundred eighty-nine thousand, three hundred ninety-six".