11056263440 has 40 divisors (see below), whose sum is σ = 25716341400. Its totient is φ = 4420694016.

The previous prime is 11056263437. The next prime is 11056263443. The reversal of 11056263440 is 4436265011.

It is an interprime number because it is at equal distance from previous prime (11056263437) and next prime (11056263443).

It can be written as a sum of positive squares in 4 ways, for example, as 3673329664 + 7382933776 = 60608^2 + 85924^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×11056263440² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11056263397 and 11056263406.

It is not an unprimeable number, because it can be changed into a prime (11056263443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177536 + ... + 231584.

It is an arithmetic number, because the mean of its divisors is an integer number (642908535).

Almost surely, 2^11056263440 is an apocalyptic number.

11056263440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11056263440 is an abundant number, since it is smaller than the sum of its proper divisors (14660077960).

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

11056263440 is a wasteful number, since it uses less digits than its factorization.

11056263440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56619 (or 56613 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 11056263440 in words is "eleven billion, fifty-six million, two hundred sixty-three thousand, four hundred forty".