65396356452 has 96 divisors (see below), whose sum is σ = 194621091840. Its totient is φ = 18602313120.

The previous prime is 65396356409. The next prime is 65396356523. The reversal of 65396356452 is 25465369356.

It is a happy number.

65396356452 is a `hidden beast` number, since 6 + 53 + 96 + 3 + 56 + 452 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18924 + ... + 362147.

It is an arithmetic number, because the mean of its divisors is an integer number (2027303040).

Almost surely, 2^65396356452 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 65396356452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97310545920).

65396356452 is an abundant number, since it is smaller than the sum of its proper divisors (129224735388).

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

65396356452 is a wasteful number, since it uses less digits than its factorization.

65396356452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381318 (or 381310 counting only the distinct ones).

The product of its digits is 17496000, while the sum is 54.

The spelling of 65396356452 in words is "sixty-five billion, three hundred ninety-six million, three hundred fifty-six thousand, four hundred fifty-two".