11451370560 has 448 divisors, whose sum is σ = 43013376000. Its totient is φ = 2579748864.

The previous prime is 11451370559. The next prime is 11451370589. The reversal of 11451370560 is 6507315411.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×11451370560² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27330031 + ... + 27330449.

It is an arithmetic number, because the mean of its divisors is an integer number (96012000).

Almost surely, 2^11451370560 is an apocalyptic number.

11451370560 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 11451370560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21506688000).

11451370560 is an abundant number, since it is smaller than the sum of its proper divisors (31562005440).

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

11451370560 is an equidigital number, since it uses as much as digits as its factorization.

11451370560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

Adding to 11451370560 its reverse (6507315411), we get a palindrome (17958685971).

The spelling of 11451370560 in words is "eleven billion, four hundred fifty-one million, three hundred seventy thousand, five hundred sixty".