11451535254440 has 64 divisors (see below), whose sum is σ = 25851291220800. Its totient is φ = 4565454432768.

The previous prime is 11451535254431. The next prime is 11451535254449. The reversal of 11451535254440 is 4445253515411.

It is an interprime number because it is at equal distance from previous prime (11451535254431) and next prime (11451535254449).

It is a super-2 number, since 2×11451535254440² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11451535254391 and 11451535254400.

It is not an unprimeable number, because it can be changed into a prime (11451535254449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32400596 + ... + 32752124.

It is an arithmetic number, because the mean of its divisors is an integer number (403926425325).

Almost surely, 2^{11451535254440} is an apocalyptic number.

11451535254440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11451535254440 is an abundant number, since it is smaller than the sum of its proper divisors (14399755966360).

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

11451535254440 is a wasteful number, since it uses less digits than its factorization.

11451535254440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354234 (or 354230 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 44.

Adding to 11451535254440 its reverse (4445253515411), we get a palindrome (15896788769851).

The spelling of 11451535254440 in words is "eleven trillion, four hundred fifty-one billion, five hundred thirty-five million, two hundred fifty-four thousand, four hundred forty".