5645655440 has 160 divisors (see below), whose sum is σ = 14519070720. Its totient is φ = 2032031232.

The previous prime is 5645655419. The next prime is 5645655451. The reversal of 5645655440 is 445565465.

It is a junction number, because it is equal to n+sod(n) for n = 5645655391 and 5645655400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5837837 + ... + 5838803.

It is an arithmetic number, because the mean of its divisors is an integer number (90744192).

Almost surely, 2^5645655440 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 5645655440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7259535360).

5645655440 is an abundant number, since it is smaller than the sum of its proper divisors (8873415280).

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

5645655440 is a wasteful number, since it uses less digits than its factorization.

5645655440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

The square root of 5645655440 is about 75137.5767509174. The cubic root of 5645655440 is about 1780.6208582016.

The spelling of 5645655440 in words is "five billion, six hundred forty-five million, six hundred fifty-five thousand, four hundred forty".