10663253440 has 112 divisors (see below), whose sum is σ = 29150779392. Its totient is φ = 3639407616.

The previous prime is 10663253387. The next prime is 10663253441. The reversal of 10663253440 is 4435236601.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×10663253440² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10663253396 and 10663253405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663253441) 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, 488847 + ... + 510193.

It is an arithmetic number, because the mean of its divisors is an integer number (260274816).

Almost surely, 2^10663253440 is an apocalyptic number.

10663253440 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 10663253440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14575389696).

10663253440 is an abundant number, since it is smaller than the sum of its proper divisors (18487525952).

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

10663253440 is a wasteful number, since it uses less digits than its factorization.

10663253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21594 (or 21584 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 10663253440 in words is "ten billion, six hundred sixty-three million, two hundred fifty-three thousand, four hundred forty".