5565126420 has 144 divisors (see below), whose sum is σ = 19325255040. Its totient is φ = 1269865728.

The previous prime is 5565126379. The next prime is 5565126439. The reversal of 5565126420 is 246215655.

5565126420 is a `hidden beast` number, since 5 + 5 + 6 + 5 + 1 + 2 + 642 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 806746 + ... + 813614.

It is an arithmetic number, because the mean of its divisors is an integer number (134203160).

Almost surely, 2^5565126420 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 5565126420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9662627520).

5565126420 is an abundant number, since it is smaller than the sum of its proper divisors (13760128620).

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

5565126420 is a wasteful number, since it uses less digits than its factorization.

5565126420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7534 (or 7529 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 5565126420 is about 74599.7749326364. The cubic root of 5565126420 is about 1772.1140879280.

The spelling of 5565126420 in words is "five billion, five hundred sixty-five million, one hundred twenty-six thousand, four hundred twenty".