5646400122 has 64 divisors (see below), whose sum is σ = 12486545280. Its totient is φ = 1687910400.

The previous prime is 5646400099. The next prime is 5646400139. The reversal of 5646400122 is 2210046465.

It is a super-2 number, since 2×5646400122² = 63763668675443229768, 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 5646400122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3482472 + ... + 3484092.

It is an arithmetic number, because the mean of its divisors is an integer number (195102270).

Almost surely, 2^5646400122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5646400122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6243272640).

5646400122 is an abundant number, since it is smaller than the sum of its proper divisors (6840145158).

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

5646400122 is a wasteful number, since it uses less digits than its factorization.

5646400122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

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

The square root of 5646400122 is about 75142.5320441093. The cubic root of 5646400122 is about 1780.6991448310.

Adding to 5646400122 its reverse (2210046465), we get a palindrome (7856446587).

The spelling of 5646400122 in words is "five billion, six hundred forty-six million, four hundred thousand, one hundred twenty-two".