65734744321356 has 192 divisors, whose sum is σ = 172327931973120. Its totient is φ = 19327097456640.

The previous prime is 65734744321237. The next prime is 65734744321357. The reversal of 65734744321356 is 65312344743756.

It is a super-2 number, since 2×65734744321356² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65734744321356.

It is not an unprimeable number, because it can be changed into a prime (65734744321357) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2651330496 + ... + 2651355288.

It is an arithmetic number, because the mean of its divisors is an integer number (897541312360).

Almost surely, 2^{65734744321356} is an apocalyptic number.

65734744321356 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65734744321356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86163965986560).

65734744321356 is an abundant number, since it is smaller than the sum of its proper divisors (106593187651764).

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

65734744321356 is a wasteful number, since it uses less digits than its factorization.

65734744321356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26344 (or 26342 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 60.

The spelling of 65734744321356 in words is "sixty-five trillion, seven hundred thirty-four billion, seven hundred forty-four million, three hundred twenty-one thousand, three hundred fifty-six".