10643422146 has 64 divisors (see below), whose sum is σ = 25028329728. Its totient is φ = 2953698048.

The previous prime is 10643422123. The next prime is 10643422151. The reversal of 10643422146 is 64122434601.

It is a happy number.

It is a super-2 number, since 2×10643422146² (a number of 21 digits) contains 22 as substring.

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, 947016 + ... + 958188.

It is an arithmetic number, because the mean of its divisors is an integer number (391067652).

Almost surely, 2^10643422146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10643422146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12514164864).

10643422146 is an abundant number, since it is smaller than the sum of its proper divisors (14384907582).

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

10643422146 is a wasteful number, since it uses less digits than its factorization.

10643422146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11835.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 10643422146 its reverse (64122434601), we get a palindrome (74765856747).

The spelling of 10643422146 in words is "ten billion, six hundred forty-three million, four hundred twenty-two thousand, one hundred forty-six".