5641511440 has 160 divisors (see below), whose sum is σ = 14021102592. Its totient is φ = 2107392000.

The previous prime is 5641511437. The next prime is 5641511497. The reversal of 5641511440 is 441151465.

It is a super-4 number, since 4×5641511440⁴ (a number of 40 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 11489595 + ... + 11490085.

Almost surely, 2^5641511440 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 5641511440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7010551296).

5641511440 is an abundant number, since it is smaller than the sum of its proper divisors (8379591152).

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

5641511440 is a wasteful number, since it uses less digits than its factorization.

5641511440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 5641511440 is about 75109.9956064438. The cubic root of 5641511440 is about 1780.1850836455.

The spelling of 5641511440 in words is "five billion, six hundred forty-one million, five hundred eleven thousand, four hundred forty".