65770093312 has 144 divisors (see below), whose sum is σ = 165131914752. Its totient is φ = 25397084160.

The previous prime is 65770093309. The next prime is 65770093313. The reversal of 65770093312 is 21339007756.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (65770093313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2212693 + ... + 2242219.

It is an arithmetic number, because the mean of its divisors is an integer number (1146749408).

Almost surely, 2^65770093312 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 65770093312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82565957376).

65770093312 is an abundant number, since it is smaller than the sum of its proper divisors (99361821440).

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

65770093312 is a wasteful number, since it uses less digits than its factorization.

65770093312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29674 (or 29660 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 43.

The spelling of 65770093312 in words is "sixty-five billion, seven hundred seventy million, ninety-three thousand, three hundred twelve".