65360722290 has 128 divisors (see below), whose sum is σ = 171986146560. Its totient is φ = 15823331328.

The previous prime is 65360722289. The next prime is 65360722309. The reversal of 65360722290 is 9222706356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26428494 + ... + 26430966.

It is an arithmetic number, because the mean of its divisors is an integer number (1343641770).

Almost surely, 2^65360722290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65360722290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85993073280).

65360722290 is an abundant number, since it is smaller than the sum of its proper divisors (106625424270).

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

65360722290 is a wasteful number, since it uses less digits than its factorization.

65360722290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 65360722290 in words is "sixty-five billion, three hundred sixty million, seven hundred twenty-two thousand, two hundred ninety".