11451043154240 has 56 divisors (see below), whose sum is σ = 27277703366760. Its totient is φ = 4578753118208.

The previous prime is 11451043154191. The next prime is 11451043154251. The reversal of 11451043154240 is 4245134015411.

It can be written as a sum of positive squares in 4 ways, for example, as 5266988280064 + 6184054874176 = 2294992^2 + 2486776^2 .

It is a super-2 number, since 2×11451043154240² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11451043154240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5618225 + ... + 7380144.

It is an arithmetic number, because the mean of its divisors is an integer number (487101845835).

Almost surely, 2^{11451043154240} is an apocalyptic number.

11451043154240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11451043154240 is an abundant number, since it is smaller than the sum of its proper divisors (15826660212520).

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

11451043154240 is a wasteful number, since it uses less digits than its factorization.

11451043154240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13001139 (or 13001129 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 11451043154240 its reverse (4245134015411), we get a palindrome (15696177169651).

The spelling of 11451043154240 in words is "eleven trillion, four hundred fifty-one billion, forty-three million, one hundred fifty-four thousand, two hundred forty".