11561425360 has 80 divisors (see below), whose sum is σ = 27832147200. Its totient is φ = 4461101568.

The previous prime is 11561425357. The next prime is 11561425361. The reversal of 11561425360 is 6352416511.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×11561425360² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11561425361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5054137 + ... + 5056423.

It is an arithmetic number, because the mean of its divisors is an integer number (347901840).

Almost surely, 2^11561425360 is an apocalyptic number.

11561425360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11561425360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13916073600).

11561425360 is an abundant number, since it is smaller than the sum of its proper divisors (16270721840).

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

11561425360 is a wasteful number, since it uses less digits than its factorization.

11561425360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

It can be divided in two parts, 11561 and 425360, that added together give a square (436921 = 661²).

The spelling of 11561425360 in words is "eleven billion, five hundred sixty-one million, four hundred twenty-five thousand, three hundred sixty".