2065421622 has 64 divisors (see below), whose sum is σ = 4646734848. Its totient is φ = 606528000.

The previous prime is 2065421609. The next prime is 2065421641. The reversal of 2065421622 is 2261245602.

It is a happy number.

It is a super-2 number, since 2×2065421622² = 8531932953250221768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2065421622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 660222 + ... + 663342.

It is an arithmetic number, because the mean of its divisors is an integer number (72605232).

Almost surely, 2^2065421622 is an apocalyptic number.

2065421622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065421622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2323367424).

2065421622 is an abundant number, since it is smaller than the sum of its proper divisors (2581313226).

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

2065421622 is a wasteful number, since it uses less digits than its factorization.

2065421622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2065421622 is about 45446.9099279588. The cubic root of 2065421622 is about 1273.5116035747.

The spelling of 2065421622 in words is "two billion, sixty-five million, four hundred twenty-one thousand, six hundred twenty-two".