65622294012 has 96 divisors (see below), whose sum is σ = 175931320320. Its totient is φ = 18828089280.

The previous prime is 65622294007. The next prime is 65622294013. The reversal of 65622294012 is 21049222656.

It is a super-2 number, since 2×65622294012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65622294013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5016993 + ... + 5030055.

It is an arithmetic number, because the mean of its divisors is an integer number (1832617920).

Almost surely, 2^65622294012 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 65622294012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87965660160).

65622294012 is an abundant number, since it is smaller than the sum of its proper divisors (110309026308).

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

65622294012 is a wasteful number, since it uses less digits than its factorization.

65622294012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15103 (or 15101 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 65622294012 in words is "sixty-five billion, six hundred twenty-two million, two hundred ninety-four thousand, twelve".