5611381440 has 224 divisors, whose sum is σ = 20707868160. Its totient is φ = 1260773376.

The previous prime is 5611381427. The next prime is 5611381513. The reversal of 5611381440 is 441831165.

It is a tau number, because it is divible by the number of its divisors (224).

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, 389404 + ... + 403556.

It is an arithmetic number, because the mean of its divisors is an integer number (92445840).

Almost surely, 2^5611381440 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 5611381440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10353934080).

5611381440 is an abundant number, since it is smaller than the sum of its proper divisors (15096486720).

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

5611381440 is a wasteful number, since it uses less digits than its factorization.

5611381440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14239 (or 14229 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 5611381440 is about 74909.1545807320. The cubic root of 5611381440 is about 1777.0102401062.

The spelling of 5611381440 in words is "five billion, six hundred eleven million, three hundred eighty-one thousand, four hundred forty".