11551444251240 has 32 divisors (see below), whose sum is σ = 34654332754080. Its totient is φ = 3080385133632.

The previous prime is 11551444251239. The next prime is 11551444251287. The reversal of 11551444251240 is 4215244415511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48131017594 + ... + 48131017833.

It is an arithmetic number, because the mean of its divisors is an integer number (1082947898565).

Almost surely, 2^{11551444251240} is an apocalyptic number.

11551444251240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11551444251240 is an abundant number, since it is smaller than the sum of its proper divisors (23102888502840).

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

11551444251240 is a wasteful number, since it uses less digits than its factorization.

11551444251240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96262035441 (or 96262035437 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 39.

Adding to 11551444251240 its reverse (4215244415511), we get a palindrome (15766688666751).

The spelling of 11551444251240 in words is "eleven trillion, five hundred fifty-one billion, four hundred forty-four million, two hundred fifty-one thousand, two hundred forty".